Horizon (1964)
- Genre: Documentary
- First Air Date: 1964-02-04
- Last Air Date: 2022-07-14
- Total Seasons: 59
- Total Episodes: 1161
- Status: Returning Series
- Episode Runtime: 60 min.
- Production Country: United Kingdom
- Networks: BBC Two
Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
Unfortunately the series Horizon is not yet available on Disney Plus. Follow us on Facebook to see when Horizon becomes available on Disney Plus!
| Title | Air Date | Duration | ||
|---|---|---|---|---|
| Season 1964 | Episode 1 | The World of Buckminster Fuller | 1964-02-05 | 60 min |
| Season 1964 | Episode 2 | Pesticides and Posterity | 1964-05-30 | 60 min |
| Season 1964 | Episode 3 | A Candle to Nature | 1964-06-27 | 60 min |
| Season 1964 | Episode 4 | Strangeness Minus Three | 1964-07-25 | 60 min |
| Season 1964 | Episode 5 | The Air of Science | 1964-08-22 | 60 min |
| Season 1964 | Episode 6 | The Knowledge Explosion | 1964-09-21 | 60 min |
| Season 1964 | Episode 7 | The Amateur Scientist | 1964-10-19 | 60 min |
| Season 1964 | Episode 8 | Tots and Quods and Woodgeries | 1964-11-16 | 60 min |
| Season 1964 | Episode 9 | Professor J.B.S. Haldane, Obituary | 1964-12-01 | 60 min |
| Season 1964 | Episode 10 | Science, Toys and Magic | 1964-12-14 | 60 min |
| Season 1965 | Episode 1 | Learning from Machines | 1965-01-06 | 60 min |
| Season 1965 | Episode 2 | The Technique of Change | 1965-01-20 | 60 min |
| Season 1965 | Episode 3 | Star Gazers | 1965-02-03 | 60 min |
| Season 1965 | Episode 4 | Science and Art | 1965-02-17 | 60 min |
| Season 1965 | Episode 5 | The Great Computer Scandal | 1965-03-03 | 60 min |
| Season 1965 | Episode 6 | Faster, Farther, Higher | 1965-03-17 | 60 min |
| Season 1965 | Episode 7 | Restless Genius | 1965-03-31 | 60 min |
| Season 1965 | Episode 8 | Other Side of the Pill | 1965-04-14 | 60 min |
| Season 1965 | Episode 9 | The Big Smoke | 1965-05-12 | 60 min |
| Season 1965 | Episode 10 | The Long Slide | 1965-05-26 | 60 min |
| Season 1965 | Episode 11 | Men and Sharks | 1965-06-09 | 60 min |
| Season 1965 | Episode 12 | The Sudden Light | 1965-06-23 | 60 min |
| Season 1965 | Episode 13 | Dr. Joseph Needham | 1965-07-14 | 60 min |
| Season 1965 | Episode 14 | Science Fiction: Science Fact? | 1965-07-28 | 60 min |
| Season 1965 | Episode 15 | Certain of Uncertainty | 1965-08-11 | 60 min |
| Season 1965 | Episode 16 | Time Stood Still | 1965-08-25 | 60 min |
| Season 1965 | Episode 17 | Fuel for the Future | 1965-09-08 | 60 min |
| Season 1965 | Episode 18 | Let Newton Be | 1965-09-22 | 60 min |
| Season 1965 | Episode 19 | Special Senses | 1965-10-10 | 60 min |
| Season 1965 | Episode 20 | An Affair of the Heart | 1965-10-24 | 60 min |
| Season 1965 | Episode 21 | 10,000 Tombs | 1965-11-07 | 60 min |
| Season 1965 | Episode 22 | Toil, Sweat & Tears | 1965-11-21 | 60 min |
| Season 1965 | Episode 23 | The Big Dishes and the Living Stream | 1965-12-05 | 60 min |
| Season 1965 | Episode 24 | Boys on Bubbles | 1965-12-19 | 60 min |
| Season 1966 | Episode 1 | Windows of the Soul | 1966-01-02 | 60 min |
| Season 1966 | Episode 2 | The Troubled Mind | 1966-01-16 | 60 min |
| Season 1966 | Episode 3 | A Man of Two Visions | 1966-01-30 | 60 min |
| Season 1966 | Episode 4 | A Theory of the Earth | 1966-02-13 | 60 min |
| Season 1966 | Episode 5 | Route 128 | 1966-02-27 | 60 min |
| Season 1966 | Episode 6 | The Beginning of Life | 1966-03-13 | 60 min |
| Season 1966 | Episode 7 | So You Want to Be an Inventor? | 1966-03-27 | 60 min |
| Season 1966 | Episode 8 | Chance and Decay | 1966-04-10 | 60 min |
| Season 1966 | Episode 9 | Towers of Ilium | 1966-04-24 | 60 min |
| Season 1966 | Episode 10 | Man in Space | 1966-05-08 | 60 min |
| Season 1966 | Episode 11 | Destination Mars | 1966-05-22 | 60 min |
| Season 1966 | Episode 12 | Man Meets Duck | 1966-06-05 | 60 min |
| Season 1966 | Episode 13 | Where Must the Money Go? | 1966-06-19 | 60 min |
| Season 1966 | Episode 14 | Genes in Action | 1966-07-03 | 60 min |
| Season 1966 | Episode 15 | The Lonely Children | 1966-07-17 | 60 min |
| Season 1966 | Episode 16 | Man of Science | 1966-07-31 | 60 min |
| Season 1966 | Episode 17 | The Dolphins That Joined the Navy | 1966-09-11 | 60 min |
| Season 1966 | Episode 18 | M.I.T's ABC | 1966-09-25 | 60 min |
| Season 1966 | Episode 19 | Ten Years in the Antarctic | 1966-10-10 | 60 min |
| Season 1966 | Episode 20 | The Athlete | 1966-10-24 | 60 min |
| Season 1966 | Episode 21 | From Peenemünde to the Moon | 1966-11-07 | 60 min |
| Season 1966 | Episode 22 | Sex-Change? | 1966-11-21 | 60 min |
| Season 1966 | Episode 23 | The Structure of Life | 1966-12-05 | 60 min |
| Season 1966 | Episode 24 | Hand Me My Sword, Humphrey | 1966-12-25 | 60 min |
| Season 1967 | Episode 1 | Sons of Cain | 1967-01-17 | 60 min |
| Season 1967 | Episode 2 | How Best to Make a Man, How Best to Make a Scientist | 1967-02-17 | 60 min |
| Season 1967 | Episode 3 | Dynamo - The Life of Michael Faraday | 1967-02-28 | 60 min |
| Season 1967 | Episode 4 | Migraine | 1967-03-14 | 60 min |
| Season 1967 | Episode 5 | How Safe is Surgery? | 1967-03-28 | 60 min |
| Season 1967 | Episode 6 | The Shape of War to Come | 1967-04-25 | 60 min |
| Season 1967 | Episode 7 | Memory | 1967-05-09 | 60 min |
| Season 1967 | Episode 8 | Masters of the Desert | 1967-05-23 | 60 min |
| Season 1967 | Episode 9 | Cancer - The Smoker's Gamble | 1967-06-20 | 60 min |
| Season 1967 | Episode 10 | Science and the Supernatural | 1967-07-04 | 60 min |
| Season 1967 | Episode 11 | Hypnosis | 1967-07-18 | 60 min |
| Season 1967 | Episode 12 | The War of the Boffins | 1967-09-12 | 60 min |
| Season 1967 | Episode 13 | Aspects of Alcohol | 1967-09-26 | 60 min |
| Season 1967 | Episode 14 | Lords of the Sea | 1967-10-10 | 60 min |
| Season 1967 | Episode 15 | Will Art Last? | 1967-10-24 | 60 min |
| Season 1967 | Episode 16 | Air Safety - The Unknown Factor | 1967-11-07 | 60 min |
| Season 1967 | Episode 17 | The Life and Death of the Pine Processionary | 1967-11-21 | 60 min |
| Season 1967 | Episode 18 | Koestler on Creativity | 1967-12-05 | 60 min |
| Season 1967 | Episode 19 | The World of Ted Serios | 1967-12-12 | 60 min |
| Season 1967 | Episode 20 | Professor in Toyland | 1967-12-24 | 60 min |
| Season 1968 | Episode 1 | An Ingenious Man - Sir H. John Baker | 1968-01-02 | 60 min |
| Season 1968 | Episode 2 | Man's Best Friend | 1968-01-30 | 60 min |
| Season 1968 | Episode 3 | Once a Junkie | 1968-02-13 | 60 min |
| Season 1968 | Episode 4 | Towns, Traffic and Tomorrow | 1968-02-27 | 60 min |
| Season 1968 | Episode 5 | The Man Makers | 1968-03-12 | 60 min |
| Season 1968 | Episode 6 | Man in Search of Himself | 1968-03-26 | 60 min |
| Season 1968 | Episode 7 | Investigating Murder | 1968-04-09 | 60 min |
| Season 1968 | Episode 8 | The Equation of Murder | 1968-05-07 | 60 min |
| Season 1968 | Episode 9 | The Lindemann Enigma | 1968-09-12 | 60 min |
| Season 1968 | Episode 10 | From Field to Factory | 1968-09-19 | 60 min |
| Season 1968 | Episode 11 | Comfort on Aging | 1968-09-26 | 60 min |
| Season 1968 | Episode 12 | Experiments in War | 1968-10-03 | 60 min |
| Season 1968 | Episode 13 | African Medicine | 1968-10-17 | 60 min |
| Season 1968 | Episode 14 | The Broken Bridge | 1968-10-24 | 60 min |
| Season 1968 | Episode 15 | Children Without Words | 1968-10-31 | 60 min |
| Season 1968 | Episode 16 | Computer Revolution | 1968-11-07 | 60 min |
| Season 1968 | Episode 17 | The Doctor's Dilemma | 1968-11-14 | 60 min |
| Season 1968 | Episode 18 | In the Matter of Dr. Alfred Nobel | 1968-11-21 | 60 min |
| Season 1968 | Episode 19 | Wheels Within Wheels | 1968-11-28 | 60 min |
| Season 1968 | Episode 20 | Black Man, White Science | 1968-12-05 | 60 min |
| Season 1968 | Episode 21 | Hidden World | 1968-12-12 | 60 min |
| Season 1968 | Episode 22 | The Talgai Skull | 1968-12-19 | 60 min |
| Season 1968 | Episode 23 | Phantasmagoria: The Magic Lantern | 1968-12-24 | 60 min |
| Season 1969 | Episode 1 | Inside Every Fat Man | 1969-01-02 | 60 min |
| Season 1969 | Episode 2 | If Only They Could Speak | 1969-01-09 | 60 min |
| Season 1969 | Episode 3 | The Miraculous Wonder: The Human Eye | 1969-01-16 | 60 min |
| Season 1969 | Episode 4 | The Years of the Locust | 1969-01-23 | 60 min |
| Season 1969 | Episode 5 | The Gifted Child | 1969-01-30 | 60 min |
| Season 1969 | Episode 6 | The Last of the Polymaths | 1969-02-06 | 60 min |
| Season 1969 | Episode 7 | Music and the Mind | 1969-02-13 | 60 min |
| Season 1969 | Episode 8 | Report on V.D. | 1969-02-20 | 60 min |
| Season 1969 | Episode 9 | A True Madness | 1969-02-22 | 60 min |
| Season 1969 | Episode 10 | Extra Sensory Perception | 1969-02-27 | 60 min |
| Season 1969 | Episode 11 | The Drift from Science | 1969-03-06 | 60 min |
| Season 1969 | Episode 12 | Powers of Persuasion | 1969-03-13 | 60 min |
| Season 1969 | Episode 13 | The View from Space | 1969-03-20 | 60 min |
| Season 1969 | Episode 14 | The Unborn Patient | 1969-03-27 | 60 min |
| Season 1969 | Episode 15 | King Solomon's Garden | 1969-04-10 | 60 min |
| Season 1969 | Episode 16 | Muck Today, Poison Tomorrow | 1969-04-24 | 60 min |
| Season 1969 | Episode 17 | Shark | 1969-05-01 | 60 min |
| Season 1969 | Episode 18 | Technology and Self-Determination | 1969-05-15 | 60 min |
| Season 1969 | Episode 19 | After Apollo | 1969-05-22 | 60 min |
| Season 1969 | Episode 20 | Discovery | 1969-05-29 | 60 min |
| Season 1969 | Episode 21 | Machines and People | 1969-06-05 | 60 min |
| Season 1969 | Episode 22 | Science on Safari | 1969-09-15 | 60 min |
| Season 1969 | Episode 23 | The Problem of Pain | 1969-09-29 | 60 min |
| Season 1969 | Episode 24 | Four Fast Legs and a Nose | 1969-10-06 | 60 min |
| Season 1969 | Episode 25 | Father of the Man | 1969-10-13 | 60 min |
| Season 1969 | Episode 26 | Master of the Microscope | 1969-10-20 | 60 min |
| Season 1969 | Episode 27 | C.E.R.N. | 1969-10-27 | 60 min |
| Season 1969 | Episode 28 | Snap, Crackle and Bang | 1969-11-03 | 60 min |
| Season 1969 | Episode 29 | Cancer Now | 1969-11-10 | 60 min |
| Season 1969 | Episode 30 | There's a Rhino in My Sugar | 1969-11-17 | 60 min |
| Season 1969 | Episode 31 | Fit to Live | 1969-11-24 | 60 min |
| Season 1969 | Episode 32 | Don't Cackle, Lay Eggs | 1969-12-01 | 60 min |
| Season 1969 | Episode 33 | How Much Do You Drink? | 1969-12-08 | 60 min |
| Season 1969 | Episode 34 | A Game of War | 1969-12-15 | 60 min |
| Season 1969 | Episode 35 | Bread | 1969-12-22 | 60 min |
| Season 1969 | Episode 36 | For the Safety of Mankind | 1969-12-29 | 60 min |
| Season 1970 | Episode 1 | Just Another World | 1970-01-05 | 60 min |
| Season 1970 | Episode 2 | Henry Royce, Mechanic | 1970-01-12 | 60 min |
| Season 1970 | Episode 3 | A Disease of Our Time - Stress | 1970-01-19 | 60 min |
| Season 1970 | Episode 4 | A Disease of Our Time - Heart Attacks | 1970-01-26 | 60 min |
| Season 1970 | Episode 5 | Sex and Sexuality | 1970-02-02 | 60 min |
| Season 1970 | Episode 6 | Whose Coast? | 1970-02-16 | 60 min |
| Season 1970 | Episode 7 | A Much Wanted Child | 1970-02-23 | 60 min |
| Season 1970 | Episode 8 | The Expert Witness | 1970-03-02 | 60 min |
| Season 1970 | Episode 9 | After the Iron Age | 1970-03-09 | 60 min |
| Season 1970 | Episode 10 | Let the Therapy Fit the Crime | 1970-03-16 | 60 min |
| Season 1970 | Episode 11 | The World Outside | 1970-03-23 | 60 min |
| Season 1970 | Episode 12 | In the Beginning Was the Word | 1970-03-30 | 60 min |
| Season 1970 | Episode 13 | The Drifting of the Continents | 1970-04-13 | 60 min |
| Season 1970 | Episode 14 | A Case of Priority | 1970-04-20 | 60 min |
| Season 1970 | Episode 15 | The Fretful Elements | 1970-04-27 | 60 min |
| Season 1970 | Episode 16 | One Man's Meat | 1970-05-11 | 60 min |
| Season 1970 | Episode 17 | Only Skin Deep | 1970-07-06 | 60 min |
| Season 1970 | Episode 18 | Wolves and Wolfmen | 1970-07-13 | 60 min |
| Season 1970 | Episode 19 | A Measure of Uncertainty | 1970-08-10 | 60 min |
| Season 1970 | Episode 20 | The Manhunters | 1970-08-17 | 60 min |
| Season 1970 | Episode 21 | Don't Get Sick in America | 1970-08-24 | 60 min |
| Season 1970 | Episode 22 | Crown of Thorns | 1970-08-31 | 60 min |
| Season 1970 | Episode 23 | Noah's Ark in Kensington | 1970-09-07 | 60 min |
| Season 1970 | Episode 24 | Virus | 1970-09-14 | 60 min |
| Season 1970 | Episode 25 | Water, Water | 1970-09-21 | 60 min |
| Season 1970 | Episode 26 | All Creatures Great and Small | 1970-09-28 | 60 min |
| Season 1970 | Episode 27 | Child for a Lifetime | 1970-10-05 | 60 min |
| Season 1970 | Episode 28 | Something for Our Children | 1970-10-12 | 60 min |
| Season 1970 | Episode 29 | Million Ton Tanker | 1970-11-02 | 60 min |
| Season 1970 | Episode 30 | The Insect War | 1970-11-09 | 60 min |
| Season 1970 | Episode 31 | The Savage Mind | 1970-11-16 | 60 min |
| Season 1970 | Episode 32 | Tanks | 1970-11-23 | 60 min |
| Season 1970 | Episode 33 | Mind the Machine | 1970-11-30 | 60 min |
| Season 1970 | Episode 34 | Square Pegs | 1970-12-07 | 60 min |
| Season 1970 | Episode 35 | The City That Waits to Die | 1970-12-14 | 60 min |
| Season 1970 | Episode 36 | The Man Who Talks to Frogs | 1970-12-21 | 60 min |
| Season 1970 | Episode 37 | The Gargantuan Triumph of Science | 1970-12-28 | 60 min |
| Season 1971 | Episode 1 | Wildlife - The Last Great Battle | 1971-01-04 | 60 min |
| Season 1971 | Episode 2 | Great Ormond Street | 1971-01-18 | 60 min |
| Season 1971 | Episode 3 | A Bulldozer Through Heaven | 1971-01-25 | 60 min |
| Season 1971 | Episode 4 | Rumors of War | 1971-02-01 | 60 min |
| Season 1971 | Episode 5 | I'm Dependent - You're Addicted | 1971-02-15 | 60 min |
| Season 1971 | Episode 6 | Kuru - To Tremble with Fear | 1971-02-22 | 60 min |
| Season 1971 | Episode 7 | Due to a Lack of Interest, Tomorrow Has Been Canceled | 1971-03-08 | 60 min |
| Season 1971 | Episode 8 | What Kind of Doctor? | 1971-03-15 | 60 min |
| Season 1971 | Episode 9 | Nice Sort of Accident to Have | 1971-03-22 | 60 min |
| Season 1971 | Episode 10 | The Wood | 1971-04-05 | 60 min |
| Season 1971 | Episode 11 | The Measure of a Man | 1971-04-12 | 60 min |
| Season 1971 | Episode 12 | Three Score Years and Then? | 1971-04-26 | 60 min |
| Season 1971 | Episode 13 | Darwin's Bulldog | 1971-05-03 | 60 min |
| Season 1971 | Episode 14 | The Secret | 1971-05-10 | 60 min |
| Season 1971 | Episode 15 | What Every Girl Should Know | 1971-05-17 | 60 min |
| Season 1971 | Episode 16 | Tastes of Food to Come | 1971-05-24 | 60 min |
| Season 1971 | Episode 17 | Looking for a Happy Landing | 1971-05-31 | 60 min |
| Season 1971 | Episode 18 | A Case of Depression | 1971-06-07 | 60 min |
| Season 1971 | Episode 19 | The Total War Machine | 1971-06-14 | 60 min |
| Season 1971 | Episode 20 | The Dinosaur Hunters | 1971-06-21 | 60 min |
| Season 1971 | Episode 21 | Your Country Needs You | 1971-09-27 | 60 min |
| Season 1971 | Episode 22 | Rheumatism | 1971-10-04 | 60 min |
| Season 1971 | Episode 23 | If at First You Don't Succeed...You Don't Succeed | 1971-10-11 | 60 min |
| Season 1971 | Episode 24 | One Liverpool or Two? | 1971-10-18 | 60 min |
| Season 1971 | Episode 25 | Rutherford, Cavendish | 1971-10-25 | 60 min |
| Season 1971 | Episode 26 | The Fierce People | 1971-11-01 | 60 min |
| Season 1971 | Episode 27 | The Men Who Painted Caves | 1971-11-15 | 60 min |
| Season 1971 | Episode 28 | The Crab Nebula | 1971-11-22 | 60 min |
| Season 1971 | Episode 29 | Can Venice Survive? | 1971-11-29 | 60 min |
| Season 1971 | Episode 30 | Willingly to School | 1971-12-06 | 60 min |
| Season 1971 | Episode 31 | Periscope War | 1971-12-20 | 60 min |
| Season 1971 | Episode 32 | Patently Absurd | 1971-12-27 | 60 min |
| Season 1972 | Episode 1 | The Missing Link | 1972-01-03 | 60 min |
| Season 1972 | Episode 2 | Navajo - The Last Red Indians | 1972-01-10 | 60 min |
| Season 1972 | Episode 3 | How Much Do You Smell? | 1972-01-17 | 60 min |
| Season 1972 | Episode 4 | Parasite of Paradise | 1972-01-31 | 60 min |
| Season 1972 | Episode 5 | The Day It Rained Periwinkles | 1972-02-07 | 60 min |
| Season 1972 | Episode 6 | Are You Doing This for Me, Doctor? | 1972-02-14 | 60 min |
| Season 1972 | Episode 7 | How They Sold Doomsday | 1972-02-21 | 60 min |
| Season 1972 | Episode 8 | For Love or Money | 1972-02-28 | 60 min |
| Season 1972 | Episode 9 | Whales, Dolphins and Men | 1972-03-06 | 60 min |
| Season 1972 | Episode 10 | What is Race? | 1972-03-13 | 60 min |
| Season 1972 | Episode 11 | Man-Made Lakes in Africa | 1972-03-20 | 60 min |
| Season 1972 | Episode 12 | Survival in the Sahara | 1972-03-27 | 60 min |
| Season 1972 | Episode 13 | Mind Over Body | 1972-04-10 | 60 min |
| Season 1972 | Episode 14 | Out of Volcanoes | 1972-04-17 | 60 min |
| Season 1972 | Episode 15 | The Wizard Who Spat on the Floor | 1972-05-01 | 60 min |
| Season 1972 | Episode 16 | Rail Crash | 1972-05-08 | 60 min |
| Season 1972 | Episode 17 | Do You Dig National Parks? | 1972-05-22 | 60 min |
| Season 1972 | Episode 18 | Sorry I Opened My Mouth | 1972-06-12 | 60 min |
| Season 1972 | Episode 19 | The Way We Move | 1972-07-03 | 60 min |
| Season 1972 | Episode 20 | The Life That Lives on Man | 1972-07-10 | 60 min |
| Season 1972 | Episode 21 | Sex Can Be a Problem | 1972-07-24 | 60 min |
| Season 1972 | Episode 22 | The Surgery of Violence | 1972-07-31 | 60 min |
| Season 1972 | Episode 23 | Hospital, 1922 | 1972-10-12 | 60 min |
| Season 1972 | Episode 24 | When Polar Bears Swam in the Thames | 1972-10-19 | 60 min |
| Season 1972 | Episode 25 | The Making of the English Landscape | 1972-10-26 | 60 min |
| Season 1972 | Episode 26 | Shadows of Bliss | 1972-11-02 | 60 min |
| Season 1972 | Episode 27 | Billion Marsh | 1972-11-09 | 60 min |
| Season 1972 | Episode 28 | Do You Sincerely Want a Long Life? | 1972-11-16 | 60 min |
| Season 1972 | Episode 29 | The Making of a Natural History Film | 1972-11-23 | 60 min |
| Season 1972 | Episode 30 | Fire | 1972-11-30 | 60 min |
| Season 1972 | Episode 31 | Alaskan Pipe Dream | 1972-12-07 | 60 min |
| Season 1972 | Episode 32 | Their Life in Your Hands | 1972-12-21 | 60 min |
| Season 1972 | Episode 33 | Navigating Europe | 1972-12-28 | 60 min |
| Season 1973 | Episode 1 | Epidemic | 1973-01-04 | 60 min |
| Season 1973 | Episode 2 | Worlds in Collision | 1973-01-11 | 60 min |
| Season 1973 | Episode 3 | The Military Necessity | 1973-01-18 | 60 min |
| Season 1973 | Episode 4 | The Curtain of Silence | 1973-01-25 | 60 min |
| Season 1973 | Episode 5 | Crime Lab | 1973-02-01 | 60 min |
| Season 1973 | Episode 6 | When the Breeding Has to Stop | 1973-02-08 | 60 min |
| Season 1973 | Episode 7 | Science is Dead, Long Live Science | 1973-02-15 | 60 min |
| Season 1973 | Episode 8 | ...And Where Will the Children Play? | 1973-03-01 | 60 min |
| Season 1973 | Episode 9 | Acupuncture: A Chinese Puzzle | 1973-03-08 | 60 min |
| Season 1973 | Episode 10 | What Time is Your Body? | 1973-03-22 | 60 min |
| Season 1973 | Episode 11 | Survival of the Weakest | 1973-04-05 | 60 min |
| Season 1973 | Episode 12 | Red Sea Coral and the Crown of Thorns | 1973-04-12 | 60 min |
| Season 1973 | Episode 13 | Lumbered with Back-Ache! | 1973-04-26 | 60 min |
| Season 1973 | Episode 14 | Airport | 1973-05-03 | 60 min |
| Season 1973 | Episode 15 | Do You Remember the Memory Man? | 1973-05-17 | 60 min |
| Season 1973 | Episode 16 | What a Waste! | 1973-05-24 | 60 min |
| Season 1973 | Episode 17 | The Laws of the Land | 1973-06-07 | 60 min |
| Season 1973 | Episode 18 | Do We Really Need the Railways? | 1973-06-14 | 60 min |
| Season 1973 | Episode 19 | The Telly of Tomorrow | 1973-06-21 | 60 min |
| Season 1973 | Episode 20 | The Rat Man | 1973-06-28 | 60 min |
| Season 1973 | Episode 21 | How Does It Hurt? | 1973-07-05 | 60 min |
| Season 1973 | Episode 22 | A Scientist Looks at Religion | 1973-08-09 | 60 min |
| Season 1973 | Episode 23 | In Search of Konrad Lorenz | 1973-09-24 | 60 min |
| Season 1973 | Episode 24 | Stretch Up Tall | 1973-10-01 | 60 min |
| Season 1973 | Episode 25 | Gilding the Lily | 1973-10-08 | 60 min |
| Season 1973 | Episode 26 | Black Holes of Gravity | 1973-10-15 | 60 min |
| Season 1973 | Episode 27 | What's So Big About Us? | 1973-10-22 | 60 min |
| Season 1973 | Episode 28 | The Steadfast Tin Soldier | 1973-10-29 | 60 min |
| Season 1973 | Episode 29 | Carry on Smoking | 1973-11-05 | 60 min |
| Season 1973 | Episode 30 | Air Crash Detective | 1973-11-26 | 60 min |
| Season 1973 | Episode 31 | An Element of Mystery | 1973-12-03 | 60 min |
| Season 1973 | Episode 32 | Digging Up the Future | 1973-12-17 | 60 min |
| Season 1973 | Episode 33 | Kula, a Reason for Giving | 1973-12-24 | 60 min |
| Season 1974 | Episode 1 | A Matter of Self-Defense | 1974-01-07 | 60 min |
| Season 1974 | Episode 2 | Bird Brain - The Mystery of Bird Navigation | 1974-01-14 | 60 min |
| Season 1974 | Episode 3 | Never Too Late to Learn | 1974-01-21 | 60 min |
| Season 1974 | Episode 4 | The Great Fish Hunt | 1974-01-28 | 60 min |
| Season 1974 | Episode 5 | Pedal Power | 1974-02-04 | 60 min |
| Season 1974 | Episode 6 | The Writing on the Wall | 1974-02-11 | 60 min |
| Season 1974 | Episode 7 | Where Did the Colorado Go? | 1974-02-18 | 60 min |
| Season 1974 | Episode 8 | The Future Goes Boom | 1974-03-04 | 60 min |
| Season 1974 | Episode 9 | Fusion: The Energy Promise | 1974-03-11 | 60 min |
| Season 1974 | Episode 10 | The First Ten Years | 1974-04-22 | 60 min |
| Season 1974 | Episode 11 | This Yankee Dodge Beats Mesmerism Hollow | 1974-04-29 | 60 min |
| Season 1974 | Episode 12 | The Hunting of the Quark | 1974-05-06 | 60 min |
| Season 1974 | Episode 13 | A Noah's Ark for Europe | 1974-05-13 | 60 min |
| Season 1974 | Episode 14 | Bridges: When It Comes to the Crunch | 1974-06-03 | 60 min |
| Season 1974 | Episode 15 | Search for Life | 1974-06-10 | 60 min |
| Season 1974 | Episode 16 | The Secrets of Sleep | 1974-06-10 | 60 min |
| Season 1974 | Episode 17 | Who Needs Skills? | 1974-06-24 | 60 min |
| Season 1974 | Episode 18 | Hills of Promise | 1974-07-01 | 60 min |
| Season 1974 | Episode 19 | The Race for the Double Helix | 1974-07-08 | 60 min |
| Season 1974 | Episode 20 | The Immigrant Doctors | 1974-07-15 | 60 min |
| Season 1974 | Episode 21 | Mines, Minerals and Men | 1974-07-22 | 60 min |
| Season 1974 | Episode 22 | What Price Steak? | 1974-07-29 | 60 min |
| Season 1974 | Episode 23 | Listen and Be Loyal | 1974-08-05 | 60 min |
| Season 1974 | Episode 24 | Adam or Eve? | 1974-08-12 | 60 min |
| Season 1974 | Episode 25 | An Unholy Scramble | 1974-09-02 | 60 min |
| Season 1974 | Episode 26 | Do as You Are Told | 1974-10-28 | 60 min |
| Season 1974 | Episode 27 | The First Signs of Washoe | 1974-11-04 | 60 min |
| Season 1974 | Episode 28 | The Other Way | 1974-11-11 | 60 min |
| Season 1974 | Episode 29 | Joey | 1974-12-09 | 60 min |
| Season 1974 | Episode 30 | The Neglected Harvest | 1974-12-16 | 60 min |
| Season 1974 | Episode 31 | How on Earth Did They Do That? | 1974-12-23 | 60 min |
| Season 1974 | Episode 32 | The Lysenko Affair | 1974-12-30 | 60 min |
| Season 1975 | Episode 1 | The Cleanest Place in the World | 1975-01-06 | 60 min |
| Season 1975 | Episode 2 | The Killer Dust | 1975-01-20 | 60 min |
| Season 1975 | Episode 3 | A Time to Be Born | 1975-01-27 | 60 min |
| Season 1975 | Episode 4 | The Unsafe Sea | 1975-02-10 | 60 min |
| Season 1975 | Episode 5 | The Change of Life | 1975-02-17 | 60 min |
| Season 1975 | Episode 6 | Project Fido | 1975-02-24 | 60 min |
| Season 1975 | Episode 7 | The Long, Long Walkabout | 1975-04-07 | 60 min |
| Season 1975 | Episode 8 | The Overworked Miracle | 1975-04-14 | 60 min |
| Season 1975 | Episode 9 | Not the Cheapest, But the Best | 1975-04-21 | 60 min |
| Season 1975 | Episode 10 | A Spoonful of Roughage | 1975-04-28 | 60 min |
| Season 1975 | Episode 11 | Brain Poison | 1975-05-05 | 60 min |
| Season 1975 | Episode 12 | The Bulldog's Last Bark | 1975-05-12 | 60 min |
| Season 1975 | Episode 13 | Benjamin | 1975-05-19 | 60 min |
| Season 1975 | Episode 14 | The McMaster Experiment | 1975-06-02 | 60 min |
| Season 1975 | Episode 15 | The Glazed Outlook | 1975-06-09 | 60 min |
| Season 1975 | Episode 16 | The Three Chord Trick | 1975-06-16 | 60 min |
| Season 1975 | Episode 17 | The Cleanest Place in the World | 1975-06-23 | 60 min |
| Season 1975 | Episode 18 | Strange Sleep | 1975-06-30 | 60 min |
| Season 1975 | Episode 19 | The Greatest Advance Since the Wheel? | 1975-07-07 | 60 min |
| Season 1975 | Episode 20 | How Do You Read? | 1975-07-14 | 60 min |
| Season 1975 | Episode 21 | The Sickly Sea | 1975-07-21 | 60 min |
| Season 1975 | Episode 22 | Happy Catastrophe | 1975-07-28 | 60 min |
| Season 1975 | Episode 23 | To Die, to Live - The Survivors of Hiroshima | 1975-08-04 | 60 min |
| Season 1975 | Episode 24 | Cannabis | 1975-08-11 | 60 min |
| Season 1975 | Episode 25 | Meditation and the Mind | 1975-08-18 | 60 min |
| Season 1975 | Episode 26 | The Trobriand Experiment | 1975-12-29 | 60 min |
| Season 1976 | Episode 1 | The Transplant Experience | 1976-01-05 | 60 min |
| Season 1976 | Episode 2 | Intimate Strangers | 1976-01-12 | 60 min |
| Season 1976 | Episode 3 | A Fair Share of What Little We Have | 1976-01-19 | 60 min |
| Season 1976 | Episode 4 | The Incredible Machine | 1976-01-26 | 60 min |
| Season 1976 | Episode 5 | King Coal Revived | 1976-02-02 | 60 min |
| Season 1976 | Episode 6 | A Question of Trust | 1976-02-09 | 60 min |
| Season 1976 | Episode 7 | The Case of the Bermuda Triangle | 1976-02-16 | 60 min |
| Season 1976 | Episode 8 | The Lords of the Labyrinth | 1976-02-23 | 60 min |
| Season 1976 | Episode 9 | Inside the Shark | 1976-03-01 | 60 min |
| Season 1976 | Episode 10 | The Chemical Dream | 1976-03-08 | 60 min |
| Season 1976 | Episode 11 | The Edelin Affair | 1976-03-15 | 60 min |
| Season 1976 | Episode 12 | The World of Margaret Mead | 1976-03-22 | 60 min |
| Season 1976 | Episode 13 | The Pathway from Madness | 1976-03-29 | 60 min |
| Season 1976 | Episode 14 | Geronimo's Children | 1976-04-05 | 60 min |
| Season 1976 | Episode 15 | The Vision of the Blind | 1976-04-12 | 60 min |
| Season 1976 | Episode 16 | A Lesson for Teachers | 1976-04-26 | 60 min |
| Season 1976 | Episode 17 | Why Did Stuart Die? | 1976-05-03 | 60 min |
| Season 1976 | Episode 18 | The Planets | 1976-05-10 | 60 min |
| Season 1976 | Episode 19 | The Children of Peru | 1976-05-17 | 60 min |
| Season 1976 | Episode 20 | Dying | 1976-05-24 | 60 min |
| Season 1976 | Episode 21 | The Great British Drought | 1976-05-31 | 60 min |
| Season 1976 | Episode 22 | A Home Like Ours... A Story of Four Children | 1976-06-07 | 60 min |
| Season 1976 | Episode 23 | What's Wrong with the Sun? | 1976-06-14 | 60 min |
| Season 1976 | Episode 24 | The Bull's Eye War | 1976-10-25 | 60 min |
| Season 1976 | Episode 25 | The Hot-Blooded Dinosaurs | 1976-11-01 | 60 min |
| Season 1976 | Episode 26 | Billion Dollar Bubble | 1976-11-08 | 60 min |
| Season 1976 | Episode 27 | The Selfish Gene | 1976-11-15 | 60 min |
| Season 1976 | Episode 28 | A Child of Our Own | 1976-11-22 | 60 min |
| Season 1976 | Episode 29 | Secrets of a Coral Island | 1976-11-29 | 60 min |
| Season 1976 | Episode 30 | The Long Valley | 1976-12-06 | 60 min |
| Season 1976 | Episode 31 | Half-Way to 1984 | 1976-12-13 | 60 min |
| Season 1976 | Episode 32 | The Mystery of King Arthur and His Round Table | 1976-12-20 | 60 min |
| Season 1977 | Episode 1 | A Smile for a Crocodile | 1977-01-07 | 60 min |
| Season 1977 | Episode 2 | The Pill for the People | 1977-01-14 | 60 min |
| Season 1977 | Episode 3 | The Ape That Stood Up | 1977-01-21 | 60 min |
| Season 1977 | Episode 4 | The Human Animal | 1977-02-04 | 60 min |
| Season 1977 | Episode 5 | The Guinea Pig and the Law | 1977-02-18 | 60 min |
| Season 1977 | Episode 6 | Hunters of the Seal | 1977-02-25 | 60 min |
| Season 1977 | Episode 7 | The Red Planet | 1977-03-04 | 60 min |
| Season 1977 | Episode 8 | One of Nature's Hotels | 1977-03-11 | 60 min |
| Season 1977 | Episode 9 | Dawn of the Solar Age | 1977-03-18 | 60 min |
| Season 1977 | Episode 10 | Genetic Roulette | 1977-04-01 | 60 min |
| Season 1977 | Episode 11 | The Amazing Doctor Newton | 1977-07-15 | 60 min |
| Season 1977 | Episode 12 | The Trouble with Medicine | 1977-07-22 | 60 min |
| Season 1977 | Episode 13 | Silent Speech | 1977-07-29 | 60 min |
| Season 1977 | Episode 14 | The Green Machine | 1977-08-05 | 60 min |
| Season 1977 | Episode 15 | Horizon 2002 | 1977-08-26 | 60 min |
| Season 1977 | Episode 16 | The River That Came Clean | 1977-09-02 | 60 min |
| Season 1977 | Episode 17 | Blueprints in the Bloodstream | 1977-09-09 | 60 min |
| Season 1977 | Episode 18 | 40 Years of Murder | 1977-09-16 | 60 min |
| Season 1977 | Episode 19 | Darwin's Dream | 1977-09-23 | 60 min |
| Season 1977 | Episode 20 | The Cry for Help | 1977-09-30 | 60 min |
| Season 1977 | Episode 21 | The Sunspot Mystery | 1977-10-07 | 60 min |
| Season 1977 | Episode 22 | The Rhine's Revenge | 1977-10-21 | 60 min |
| Season 1977 | Episode 23 | Icarus' Children | 1977-12-02 | 60 min |
| Season 1977 | Episode 24 | The Healing Nightmare | 1977-12-09 | 60 min |
| Season 1977 | Episode 25 | The Great Wine Revolution | 1977-12-23 | 60 min |
| Season 1978 | Episode 1 | Living Machines | 1978-01-06 | 60 min |
| Season 1978 | Episode 2 | A Land for All Reasons | 1978-01-20 | 60 min |
| Season 1978 | Episode 3 | I Don't Want to Be a Burden | 1978-01-27 | 60 min |
| Season 1978 | Episode 4 | Zero G | 1978-02-03 | 60 min |
| Season 1978 | Episode 5 | The Message in the Rocks | 1978-02-17 | 60 min |
| Season 1978 | Episode 6 | The Eddystone Lights | 1978-02-24 | 60 min |
| Season 1978 | Episode 7 | Light of the 21st Century | 1978-03-10 | 60 min |
| Season 1978 | Episode 8 | The New Breadline | 1978-03-24 | 60 min |
| Season 1978 | Episode 9 | Now the Chips Are Down | 1978-03-31 | 60 min |
| Season 1978 | Episode 10 | Explosions in the Mind | 1978-07-14 | 60 min |
| Season 1978 | Episode 11 | One Small Step | 1978-07-21 | 60 min |
| Season 1978 | Episode 12 | The Tsetse Trap | 1978-07-28 | 60 min |
| Season 1978 | Episode 13 | A Whisper from Space | 1978-08-04 | 60 min |
| Season 1978 | Episode 14 | Prisoners of Hope | 1978-08-11 | 60 min |
| Season 1978 | Episode 15 | On a Different Track | 1978-08-18 | 60 min |
| Season 1978 | Episode 16 | Careering Into Science | 1978-08-25 | 60 min |
| Season 1978 | Episode 17 | Cashing In on the Ocean | 1978-09-01 | 60 min |
| Season 1978 | Episode 18 | Bags of Life | 1978-09-08 | 60 min |
| Season 1978 | Episode 19 | Innocent Slaughter | 1978-09-15 | 60 min |
| Season 1978 | Episode 20 | The Beersheva Experiment | 1978-11-03 | 60 min |
| Season 1978 | Episode 21 | Divers Do It Deeper | 1978-11-10 | 60 min |
| Season 1978 | Episode 22 | The Big Sleep | 1978-11-17 | 60 min |
| Season 1978 | Episode 23 | The Vital Spark | 1978-11-24 | 60 min |
| Season 1978 | Episode 24 | The Red Deer of Rhum | 1978-12-29 | 60 min |
| Season 1979 | Episode 1 | The Forever Fuel | 1979-02-26 | 60 min |
| Season 1979 | Episode 2 | In Search of Pegasus | 1979-03-05 | 60 min |
| Season 1979 | Episode 3 | The Keys of Paradise | 1979-03-12 | 60 min |
| Season 1979 | Episode 4 | Sweet Solutions | 1979-03-19 | 60 min |
| Season 1979 | Episode 5 | Bronze Age Blast-Off | 1979-03-26 | 60 min |
| Season 1979 | Episode 6 | The Real Bionic Man | 1979-04-02 | 60 min |
| Season 1979 | Episode 7 | A Mediterranean Prospect | 1979-04-09 | 60 min |
| Season 1979 | Episode 8 | Elements of Risk | 1979-04-23 | 60 min |
| Season 1979 | Episode 9 | Mr. Ludwig's Tropical Dreamland | 1979-04-30 | 60 min |
| Season 1979 | Episode 10 | Where Nothing Happens Twice | 1979-05-07 | 60 min |
| Season 1979 | Episode 11 | Journey Through the Human Body | 1979-05-14 | 60 min |
| Season 1979 | Episode 12 | The Fight to Be Male | 1979-05-21 | 60 min |
| Season 1979 | Episode 13 | The Robots Are Coming | 1979-05-28 | 60 min |
| Season 1979 | Episode 14 | Mexican Oil Dance | 1979-09-24 | 60 min |
| Season 1979 | Episode 15 | Tracks on the Oregon Trail | 1979-10-01 | 60 min |
| Season 1979 | Episode 16 | The Race to Reshape Cars | 1979-10-08 | 60 min |
| Season 1979 | Episode 17 | Dragnet for Diabetes | 1979-10-15 | 60 min |
| Season 1979 | Episode 18 | The Lost Waters of the Nile | 1979-10-22 | 60 min |
| Season 1979 | Episode 19 | Survival of the Fastest | 1979-10-29 | 60 min |
| Season 1979 | Episode 20 | A Touch of Sensitivity | 1979-11-05 | 60 min |
| Season 1979 | Episode 21 | A Treasury of Trees | 1979-11-12 | 60 min |
| Season 1979 | Episode 22 | Darkness Visible | 1979-11-19 | 60 min |
| Season 1979 | Episode 23 | Uranium Goes Critical | 1979-12-03 | 60 min |
| Season 1979 | Episode 24 | The Fat in the Fire | 1979-12-10 | 60 min |
| Season 1979 | Episode 25 | Decade | 1979-12-17 | 60 min |
| Season 1980 | Episode 1 | The Ghost of the Amoco Cadiz | 1980-01-14 | 60 min |
| Season 1980 | Episode 2 | You Are Old, Father William | 1980-01-21 | 60 min |
| Season 1980 | Episode 3 | Cleared for Takeoff | 1980-02-04 | 60 min |
| Season 1980 | Episode 4 | A Sporting Chance | 1980-02-11 | 60 min |
| Season 1980 | Episode 5 | Cancer Detectives of Lin Xian | 1980-02-18 | 60 min |
| Season 1980 | Episode 6 | The Big If... | 1980-02-25 | 60 min |
| Season 1980 | Episode 7 | Cash from Trash | 1980-03-03 | 60 min |
| Season 1980 | Episode 8 | Encounter with Jupiter | 1980-03-10 | 60 min |
| Season 1980 | Episode 9 | Portrait of a Poison | 1980-03-17 | 60 min |
| Season 1980 | Episode 10 | Magnet Earth | 1980-03-24 | 60 min |
| Season 1980 | Episode 11 | Goodbye Gutenberg | 1980-09-01 | 60 min |
| Season 1980 | Episode 12 | Invasion of the Virions | 1980-09-08 | 60 min |
| Season 1980 | Episode 13 | Beyond the Milky Way | 1980-09-15 | 60 min |
| Season 1980 | Episode 14 | Little Boxes | 1980-09-22 | 60 min |
| Season 1980 | Episode 15 | The Other Kenya | 1980-09-29 | 60 min |
| Season 1980 | Episode 16 | Moving Still | 1980-10-06 | 60 min |
| Season 1980 | Episode 17 | The Way Out | 1980-10-13 | 60 min |
| Season 1980 | Episode 18 | The Dead Sea Lives | 1980-10-20 | 60 min |
| Season 1980 | Episode 19 | Once in a Million Years | 1980-10-27 | 60 min |
| Season 1980 | Episode 20 | Smoker's Luck | 1980-11-03 | 60 min |
| Season 1980 | Episode 21 | Behind the Horoscope | 1980-11-10 | 60 min |
| Season 1980 | Episode 22 | The Mondragon Experiment | 1980-11-17 | 60 min |
| Season 1980 | Episode 23 | The Spike | 1980-11-24 | 60 min |
| Season 1980 | Episode 24 | The Slatemakers | 1980-12-01 | 60 min |
| Season 1980 | Episode 25 | Anatomy of a Volcano | 1980-12-15 | 60 min |
| Season 1981 | Episode 1 | Spend and Prosper | 1981-01-05 | 60 min |
| Season 1981 | Episode 2 | A Whole New Medicine | 1981-01-12 | 60 min |
| Season 1981 | Episode 3 | The Qualyub Project | 1981-01-19 | 60 min |
| Season 1981 | Episode 4 | No-One Will Take Me Seriously | 1981-01-26 | 60 min |
| Season 1981 | Episode 5 | Living with Dying | 1981-02-02 | 60 min |
| Season 1981 | Episode 6 | A is for Atom, B is for Bomb | 1981-02-09 | 60 min |
| Season 1981 | Episode 7 | Who Will Deliver Your Baby? | 1981-02-16 | 60 min |
| Season 1981 | Episode 8 | West of Bangalore | 1981-03-02 | 60 min |
| Season 1981 | Episode 9 | Gentlemen, Lift Your Skirts | 1981-03-09 | 60 min |
| Season 1981 | Episode 10 | Hello Universe! | 1981-03-16 | 60 min |
| Season 1981 | Episode 11 | Voices from Silent Hands | 1981-03-23 | 60 min |
| Season 1981 | Episode 12 | Did Darwin Get It Wrong? | 1981-03-30 | 60 min |
| Season 1981 | Episode 13 | East of Bombay | 1981-04-06 | 60 min |
| Season 1981 | Episode 14 | Resolution on Saturn - The Rings | 1981-04-11 | 60 min |
| Season 1981 | Episode 15 | Resolution on Saturn - The Moons | 1981-04-13 | 60 min |
| Season 1981 | Episode 16 | Heads I Win, Tails You Lose | 1981-09-28 | 60 min |
| Season 1981 | Episode 17 | The Hunt for the Legion Killer | 1981-10-05 | 60 min |
| Season 1981 | Episode 18 | Breaking in Children | 1981-10-12 | 60 min |
| Season 1981 | Episode 19 | The Grid | 1981-10-19 | 60 min |
| Season 1981 | Episode 20 | Butterflies or Barley? | 1981-10-26 | 60 min |
| Season 1981 | Episode 21 | Science for the People | 1981-11-02 | 60 min |
| Season 1981 | Episode 22 | The Race to Ruin | 1981-11-09 | 60 min |
| Season 1981 | Episode 23 | Death of the Dinosaurs | 1981-11-16 | 60 min |
| Season 1981 | Episode 24 | The Pleasure of Finding Things Out | 1981-11-23 | 60 min |
| Season 1981 | Episode 25 | The Cornucopia | 1981-11-30 | 60 min |
| Season 1981 | Episode 26 | The Race Against Time | 1981-12-07 | 60 min |
| Season 1981 | Episode 27 | Painting by Numbers | 1981-12-21 | 60 min |
| Season 1982 | Episode 1 | The Secret of the Snake | 1982-01-11 | 60 min |
| Season 1982 | Episode 2 | Finding a Voice | 1982-01-18 | 60 min |
| Season 1982 | Episode 3 | The Sea Beyond the Dunes | 1982-01-25 | 60 min |
| Season 1982 | Episode 4 | Whatever Happened to the Energy Crisis? | 1982-02-01 | 60 min |
| Season 1982 | Episode 5 | Notes of a Biology Watcher | 1982-02-08 | 60 min |
| Season 1982 | Episode 6 | The Cline Affair | 1982-02-15 | 60 min |
| Season 1982 | Episode 7 | The Million Murdering Death | 1982-02-22 | 60 min |
| Season 1982 | Episode 8 | Shots in the Dark | 1982-03-01 | 60 min |
| Season 1982 | Episode 9 | The Victims | 1982-03-08 | 60 min |
| Season 1982 | Episode 10 | The Future - Made in Japan? | 1982-03-15 | 60 min |
| Season 1982 | Episode 11 | The Private Face of Medicine | 1982-03-22 | 60 min |
| Season 1982 | Episode 12 | The Fatal Bargain | 1982-04-05 | 60 min |
| Season 1982 | Episode 13 | The Miracle of Life | 1982-10-11 | 60 min |
| Season 1982 | Episode 14 | The Case of the UFOs | 1982-10-18 | 60 min |
| Season 1982 | Episode 15 | A Killing Rain | 1982-10-25 | 60 min |
| Season 1982 | Episode 16 | Intimate Relations | 1982-11-01 | 60 min |
| Season 1982 | Episode 17 | The Scientist and the Baby | 1982-11-08 | 60 min |
| Season 1982 | Episode 18 | Brave New Babies? | 1982-11-15 | 60 min |
| Season 1982 | Episode 19 | The Professor of Surgery | 1982-11-29 | 60 min |
| Season 1982 | Episode 20 | The Chopper | 1982-12-06 | 60 min |
| Season 1982 | Episode 21 | The State of the Planet | 1982-12-13 | 60 min |
| Season 1982 | Episode 22 | The Mysterious Mr. Tesla | 1982-12-20 | 60 min |
| Season 1983 | Episode 1 | Sizewell Under Pressure | 1983-01-10 | 60 min |
| Season 1983 | Episode 2 | The Tropical Time Machine | 1983-01-17 | 60 min |
| Season 1983 | Episode 3 | The Geneva Event | 1983-01-24 | 60 min |
| Season 1983 | Episode 4 | How Much Can You Drink? | 1983-02-07 | 60 min |
| Season 1983 | Episode 5 | Talking Turtle | 1983-02-14 | 60 min |
| Season 1983 | Episode 6 | What Little Girls Are Made of | 1983-02-21 | 60 min |
| Season 1983 | Episode 7 | British Science - On the Wrong Track? | 1983-02-28 | 60 min |
| Season 1983 | Episode 8 | The Great Plains Massacre | 1983-03-07 | 60 min |
| Season 1983 | Episode 9 | Hard Rock | 1983-03-14 | 60 min |
| Season 1983 | Episode 10 | Better Mind the Computer | 1983-03-21 | 60 min |
| Season 1983 | Episode 11 | Madness on Trial | 1983-04-11 | 60 min |
| Season 1983 | Episode 12 | Sixty Minutes to Meltdown | 1983-04-18 | 60 min |
| Season 1983 | Episode 13 | Killer in the Village | 1983-04-25 | 60 min |
| Season 1983 | Episode 14 | The Case of ESP | 1983-09-26 | 60 min |
| Season 1983 | Episode 15 | The Artificial Heart | 1983-10-03 | 60 min |
| Season 1983 | Episode 16 | Dr. Priestley and the Breath of Life | 1983-10-10 | 60 min |
| Season 1983 | Episode 17 | Professor Hawking's Universe | 1983-10-17 | 60 min |
| Season 1983 | Episode 18 | The Cruel Choice | 1983-10-24 | 60 min |
| Season 1983 | Episode 19 | A Child's Guide to Languages | 1983-10-31 | 60 min |
| Season 1983 | Episode 20 | China's Child | 1983-11-07 | 60 min |
| Season 1983 | Episode 21 | The Earthquake Connection | 1983-11-14 | 60 min |
| Season 1983 | Episode 22 | Prisoner or Patient? | 1983-11-28 | 60 min |
| Season 1983 | Episode 23 | Cancer - The Pattern in the Genes | 1983-12-05 | 60 min |
| Season 1983 | Episode 24 | The Academy | 1983-12-12 | 60 min |
| Season 1984 | Episode 1 | The Intelligence Man | 1984-01-09 | 60 min |
| Season 1984 | Episode 2 | Microworld! | 1984-01-16 | 60 min |
| Season 1984 | Episode 3 | A New Green Revolution? | 1984-01-23 | 60 min |
| Season 1984 | Episode 4 | Spies in the Wires | 1984-01-30 | 60 min |
| Season 1984 | Episode 5 | Valley of the Inca | 1984-02-13 | 60 min |
| Season 1984 | Episode 6 | The Conquest of Parasites | 1984-02-27 | 60 min |
| Season 1984 | Episode 7 | Reflections on a River | 1984-03-05 | 60 min |
| Season 1984 | Episode 8 | A Normal Face | 1984-03-12 | 60 min |
| Season 1984 | Episode 9 | Prisoners of Incest | 1984-03-19 | 60 min |
| Season 1984 | Episode 10 | Signs of the Apes, Songs of the Whales | 1984-03-26 | 60 min |
| Season 1984 | Episode 11 | Professor Bonner and the Slime Moulds | 1984-04-09 | 60 min |
| Season 1984 | Episode 12 | The Mind of a Murderer - The Case of the Hillside Strangler | 1984-04-16 | 60 min |
| Season 1984 | Episode 13 | The Mind of a Murderer - The Mask of Madness | 1984-04-23 | 60 min |
| Season 1984 | Episode 14 | A Cruel Inheritance | 1984-04-30 | 60 min |
| Season 1984 | Episode 15 | The Malvern Link | 1984-05-07 | 60 min |
| Season 1984 | Episode 16 | Contented Cows and Other Animals | 1984-11-05 | 60 min |
| Season 1984 | Episode 17 | Picking Winners | 1984-11-12 | 60 min |
| Season 1984 | Episode 18 | The Brain Puzzle | 1984-11-19 | 60 min |
| Season 1984 | Episode 19 | Global Village | 1984-11-26 | 60 min |
| Season 1984 | Episode 20 | Ivan | 1984-12-03 | 60 min |
| Season 1984 | Episode 21 | A Mathematical Mystery Tour | 1984-12-10 | 60 min |
| Season 1984 | Episode 22 | Supercharged | 1984-12-17 | 60 min |
| Season 1985 | Episode 1 | Colourful Notions | 1985-01-07 | 60 min |
| Season 1985 | Episode 2 | A World of Their Own | 1985-01-14 | 60 min |
| Season 1985 | Episode 3 | Decoding Danebury | 1985-01-21 | 60 min |
| Season 1985 | Episode 4 | A Mission to Heal | 1985-01-28 | 60 min |
| Season 1985 | Episode 5 | The Mystery of the Left Hand | 1985-02-04 | 60 min |
| Season 1985 | Episode 6 | The Theatre of War | 1985-02-11 | 60 min |
| Season 1985 | Episode 7 | The Careful Predator | 1985-02-25 | 60 min |
| Season 1985 | Episode 8 | What Einstein Never Knew | 1985-03-04 | 60 min |
| Season 1985 | Episode 9 | Eurekaaargh! | 1985-03-11 | 60 min |
| Season 1985 | Episode 10 | Careering On | 1985-03-18 | 60 min |
| Season 1985 | Episode 11 | How to Film the Impossible | 1985-03-25 | 60 min |
| Season 1985 | Episode 12 | The Food Allergy War | 1985-04-01 | 60 min |
| Season 1985 | Episode 13 | The Goddess of the Earth | 1985-04-15 | 60 min |
| Season 1985 | Episode 14 | IRAS - The Supercooled Eye | 1985-04-22 | 60 min |
| Season 1985 | Episode 15 | A Prize Discovery | 1985-04-29 | 60 min |
| Season 1986 | Episode 1 | Are You a Racist? | 1986-01-06 | 60 min |
| Season 1986 | Episode 2 | Genesis | 1986-01-13 | 60 min |
| Season 1986 | Episode 3 | Bitter Cold | 1986-01-20 | 60 min |
| Season 1986 | Episode 4 | The Mould, the Myth and the Microbe | 1986-01-27 | 60 min |
| Season 1986 | Episode 5 | Outbreak: The Microbe Masters the Mould | 1986-02-03 | 60 min |
| Season 1986 | Episode 6 | The Wrong Stuff | 1986-02-10 | 60 min |
| Season 1986 | Episode 7 | Science...Fiction? | 1986-02-17 | 60 min |
| Season 1986 | Episode 8 | The Children of Eve | 1986-02-24 | 60 min |
| Season 1986 | Episode 9 | The New Face of Leprosy | 1986-03-03 | 60 min |
| Season 1986 | Episode 10 | Hi-Tech a la Francaise | 1986-03-10 | 60 min |
| Season 1986 | Episode 11 | In the Wake of HMS Sheffield | 1986-03-17 | 60 min |
| Season 1986 | Episode 12 | AIDS: A Strange and Deadly Virus | 1986-03-24 | 60 min |
| Season 1986 | Episode 13 | The Case of the Frozen Addicts | 1986-04-07 | 60 min |
| Season 1986 | Episode 14 | Nice Guys Finish First | 1986-04-14 | 60 min |
| Season 1986 | Episode 15 | The Men Who Bottled a Cow | 1986-04-21 | 60 min |
| Season 1986 | Episode 16 | Twice Five Plus the Wings of a Bird | 1986-04-28 | 60 min |
| Season 1986 | Episode 17 | What Makes an Animal Smart? | 1986-05-12 | 60 min |
| Season 1986 | Episode 18 | A Handful of Sugar with a Pinch of Salt | 1986-05-19 | 60 min |
| Season 1986 | Episode 19 | Uranus Encounter | 1986-05-26 | 60 min |
| Season 1986 | Episode 20 | Who Built Stonehenge? | 1986-06-09 | 60 min |
| Season 1986 | Episode 21 | Battered Baby - From Generation to Generation | 1986-06-16 | 60 min |
| Season 1986 | Episode 22 | Battered Baby - Breaking the Chain | 1986-06-23 | 60 min |
| Season 1986 | Episode 23 | Doctors to Be | 1986-06-30 | 60 min |
| Season 1987 | Episode 1 | The Twentyfive Hour Clock | 1987-01-05 | 60 min |
| Season 1987 | Episode 2 | The Search for the Disappeared | 1987-01-12 | 60 min |
| Season 1987 | Episode 3 | The Blind Watchmaker | 1987-01-19 | 60 min |
| Season 1987 | Episode 4 | Riding the Stack | 1987-01-26 | 60 min |
| Season 1987 | Episode 5 | Bruno Bettelheim: The Man Who Cared for Children | 1987-02-02 | 60 min |
| Season 1987 | Episode 6 | Bruno Bettelheim: A Sense of Surviving | 1987-02-09 | 60 min |
| Season 1987 | Episode 7 | Energy from Outer Space | 1987-02-16 | 60 min |
| Season 1987 | Episode 8 | The Return of the Osprey | 1987-02-23 | 60 min |
| Season 1987 | Episode 9 | Can AIDS Be Stopped | 1987-03-02 | 60 min |
| Season 1987 | Episode 10 | Police Stress: The John Wayne Syndrome | 1987-03-09 | 60 min |
| Season 1987 | Episode 11 | To Engineer is Human | 1987-03-16 | 60 min |
| Season 1987 | Episode 12 | The Magma Chamber | 1987-03-23 | 60 min |
| Season 1987 | Episode 13 | Broken Images | 1987-03-30 | 60 min |
| Season 1987 | Episode 14 | Trial Babies | 1987-04-06 | 60 min |
| Season 1987 | Episode 15 | After Chernobyl - Closer to Home | 1987-04-13 | 60 min |
| Season 1987 | Episode 16 | Life Story | 1987-04-27 | 60 min |
| Season 1987 | Episode 17 | Making Sex Pay | 1987-05-11 | 60 min |
| Season 1987 | Episode 18 | The Anthropic Principle | 1987-05-18 | 60 min |
| Season 1987 | Episode 19 | Aircrash: The Burning Issue | 1987-06-01 | 60 min |
| Season 1987 | Episode 20 | The Riddle of the Joints | 1987-06-08 | 60 min |
| Season 1987 | Episode 21 | To Catch a Falling Star | 1987-05-15 | 60 min |
| Season 1987 | Episode 22 | In the Light of New Information | 1987-06-22 | 60 min |
| Season 1987 | Episode 23 | Janice's Choice | 1987-06-29 | 60 min |
| Season 1988 | Episode 1 | The Transplanted Brain | 1988-01-04 | 60 min |
| Season 1988 | Episode 2 | Death of a Star | 1988-01-11 | 60 min |
| Season 1988 | Episode 3 | Playing with Madness | 1988-01-18 | 60 min |
| Season 1988 | Episode 4 | The Canal in the Jungle | 1988-01-25 | 60 min |
| Season 1988 | Episode 5 | Death of the Working Classes | 1988-02-01 | 60 min |
| Season 1988 | Episode 6 | The Greenhouse Effect | 1988-02-08 | 60 min |
| Season 1988 | Episode 7 | Struggling for Control | 1988-02-15 | 60 min |
| Season 1988 | Episode 8 | Thinking | 1988-02-22 | 60 min |
| Season 1988 | Episode 9 | Patients on Trial | 1988-02-29 | 60 min |
| Season 1988 | Episode 10 | Purple Warrior - Rules of Engagement | 1988-03-07 | 60 min |
| Season 1988 | Episode 11 | Purple Warrior - Limited War | 1988-03-14 | 60 min |
| Season 1988 | Episode 12 | The Heart of Another | 1988-03-28 | 60 min |
| Season 1988 | Episode 13 | Easter Island - The Secrets | 1988-04-11 | 60 min |
| Season 1988 | Episode 14 | Easter Island - The Story | 1988-04-18 | 60 min |
| Season 1988 | Episode 15 | Doctors to Be - Trial by Interview | 1988-04-23 | 60 min |
| Season 1988 | Episode 16 | Doctors to Be - The Knowledge | 1988-04-24 | 60 min |
| Season 1988 | Episode 17 | Doctors to Be - Welcome to the Real World | 1988-04-25 | 60 min |
| Season 1988 | Episode 18 | Cancer at Bay | 1988-05-02 | 60 min |
| Season 1988 | Episode 19 | Traces of Murder | 1988-05-09 | 60 min |
| Season 1988 | Episode 20 | The Hope of Progress | 1988-05-16 | 60 min |
| Season 1988 | Episode 21 | A Newsday Revolution | 1988-05-23 | 60 min |
| Season 1988 | Episode 22 | A Good Test? | 1988-06-06 | 60 min |
| Season 1988 | Episode 23 | Superconductor - The Race for the Prize | 1988-06-13 | 60 min |
| Season 1988 | Episode 24 | Believe Me | 1988-06-27 | 60 min |
| Season 1988 | Episode 25 | The Quest for Tannu Tuva | 1988-07-04 | 60 min |
| Season 1989 | Episode 1 | The Book of Man | 1989-01-09 | 60 min |
| Season 1989 | Episode 2 | The Poison That Waits | 1989-01-16 | 60 min |
| Season 1989 | Episode 3 | Perils of the Deep | 1989-01-23 | 60 min |
| Season 1989 | Episode 4 | Smart Weapons | 1989-01-30 | 60 min |
| Season 1989 | Episode 5 | Wasting the Alps | 1989-02-06 | 60 min |
| Season 1989 | Episode 6 | In the Last Resort | 1989-02-13 | 60 min |
| Season 1989 | Episode 7 | Gaze in Wonder | 1989-02-20 | 60 min |
| Season 1989 | Episode 8 | In My Lifetime? | 1989-02-27 | 60 min |
| Season 1989 | Episode 9 | Concerto | 1989-03-06 | 60 min |
| Season 1989 | Episode 10 | Black Schizophrenia | 1989-03-13 | 60 min |
| Season 1989 | Episode 11 | Trial in the Jungle | 1989-03-20 | 60 min |
| Season 1989 | Episode 12 | Who Will Make Me Better? | 1989-04-03 | 60 min |
| Season 1989 | Episode 13 | A Wonderful Life | 1989-04-17 | 60 min |
| Season 1989 | Episode 14 | Why Buildings Make You Sick | 1989-04-24 | 60 min |
| Season 1989 | Episode 15 | Jubilee | 1989-05-08 | 60 min |
| Season 1989 | Episode 16 | Crash | 1989-05-15 | 60 min |
| Season 1989 | Episode 17 | The New Sixth Sense | 1989-05-22 | 60 min |
| Season 1989 | Episode 18 | Clive Sinclair: The Anatomy of an Inventor | 1989-06-12 | 60 min |
| Season 1989 | Episode 19 | Newpin: A Lifetime | 1989-06-19 | 60 min |
| Season 1989 | Episode 20 | Time of Darkness | 1989-06-26 | 60 min |
| Season 1990 | Episode 1 | Oil Spill | 1990-01-08 | 60 min |
| Season 1990 | Episode 2 | Medicine 2000 | 1990-01-15 | 60 min |
| Season 1990 | Episode 3 | Food Irradiation: Would You Buy It? | 1990-01-22 | 60 min |
| Season 1990 | Episode 4 | From Earth to Miranda | 1990-01-29 | 60 min |
| Season 1990 | Episode 5 | Encounter with Neptune | 1990-02-05 | 60 min |
| Season 1990 | Episode 6 | Guess What's Coming to Dinner? | 1990-02-12 | 60 min |
| Season 1990 | Episode 7 | The First 14 Days | 1990-02-19 | 60 min |
| Season 1990 | Episode 8 | The 10,000 Year Test | 1990-03-05 | 60 min |
| Season 1990 | Episode 9 | Hurricane! | 1990-03-12 | 60 min |
| Season 1990 | Episode 10 | The Britannic Greenhouse | 1990-03-19 | 60 min |
| Season 1990 | Episode 11 | Cold Fusion | 1990-03-26 | 60 min |
| Season 1990 | Episode 12 | The Quake of '89 - The Final Warning? | 1990-04-02 | 60 min |
| Season 1990 | Episode 13 | The Sharpest Show of the Universe | 1990-04-09 | 60 min |
| Season 1990 | Episode 14 | The Company of Ants and Bees | 1990-04-23 | 60 min |
| Season 1990 | Episode 15 | The Intelligent Island | 1990-04-30 | 60 min |
| Season 1990 | Episode 16 | Legacy of a Volcano | 1990-05-14 | 60 min |
| Season 1990 | Episode 17 | Do Cows Make You Mad? | 1990-05-21 | 60 min |
| Season 1990 | Episode 18 | The Child Mothers | 1990-06-04 | 60 min |
| Season 1990 | Episode 19 | Signs of Life | 1990-06-11 | 60 min |
| Season 1990 | Episode 20 | AIDS: A Quest for a Cure | 1990-06-25 | 60 min |
| Season 1991 | Episode 1 | Sudden Death | 1991-01-07 | 60 min |
| Season 1991 | Episode 2 | Keen as Mustard | 1991-01-14 | 60 min |
| Season 1991 | Episode 3 | Smokers Can Harm Your Health | 1991-01-21 | 60 min |
| Season 1991 | Episode 4 | Coming In from the Cold | 1991-01-28 | 60 min |
| Season 1991 | Episode 5 | Small Problems with the Mirror | 1991-02-04 | 60 min |
| Season 1991 | Episode 6 | Two Weeks to Save the Earth | 1991-02-10 | 60 min |
| Season 1991 | Episode 7 | California Dreaming | 1991-02-11 | 60 min |
| Season 1991 | Episode 8 | The Day the Earth Melted | 1991-02-25 | 60 min |
| Season 1991 | Episode 9 | The Curse of Karash | 1991-02-25 | 60 min |
| Season 1991 | Episode 10 | Playing at Noah | 1991-03-04 | 60 min |
| Season 1991 | Episode 11 | Cashing in on Paradise | 1991-03-11 | 60 min |
| Season 1991 | Episode 12 | The Terracotta Time Machine | 1991-03-18 | 60 min |
| Season 1991 | Episode 13 | Measuring the Roof of the World | 1991-03-25 | 60 min |
| Season 1991 | Episode 14 | The First Americans | 1991-04-15 | 60 min |
| Season 1991 | Episode 15 | Inside Chernobyl's Sarcophagus | 1991-04-22 | 60 min |
| Season 1991 | Episode 16 | Colonising Cyberspace | 1991-04-29 | 60 min |
| Season 1991 | Episode 17 | Emerging Viruses | 1991-05-13 | 60 min |
| Season 1991 | Episode 18 | Camelford - A Bitter Aftertaste | 1991-05-20 | 60 min |
| Season 1991 | Episode 19 | Of Big Bangs, Stick Men and Galactic Holes | 1991-06-03 | 60 min |
| Season 1991 | Episode 20 | Food for Thought | 1991-06-10 | 60 min |
| Season 1991 | Episode 21 | The Long Road to the West | 1991-06-17 | 60 min |
| Season 1991 | Episode 22 | Half Hearted About Semi-Skimmed | 1991-06-24 | 60 min |
| Season 1991 | Episode 23 | T-Rex Exposed | 1991-07-01 | 60 min |
| Season 1992 | Episode 1 | The Shadow of Breast Cancer | 1992-01-06 | 60 min |
| Season 1992 | Episode 2 | Pest Wars | 1992-01-13 | 60 min |
| Season 1992 | Episode 3 | Molecules with Sunglasses | 1992-01-20 | 60 min |
| Season 1992 | Episode 4 | In Search of the Noble Savage | 1992-01-27 | 60 min |
| Season 1992 | Episode 5 | Malaria: Battle of the Merozoites | 1992-02-03 | 60 min |
| Season 1992 | Episode 6 | The Black Sun | 1992-02-17 | 60 min |
| Season 1992 | Episode 7 | Hitler's Bomb | 1992-02-24 | 60 min |
| Season 1992 | Episode 8 | An Expensive Theology | 1992-03-02 | 60 min |
| Season 1992 | Episode 9 | The Strange Life and Death of Dr. Turing | 1992-03-09 | 60 min |
| Season 1992 | Episode 10 | Hot Jam in the Doughnut | 1992-03-16 | 60 min |
| Season 1992 | Episode 11 | A Diet for a Lifetime | 1992-03-30 | 60 min |
| Season 1992 | Episode 12 | Before Babel | 1992-04-06 | 60 min |
| Season 1992 | Episode 13 | The Man Who Moved the Mountains | 1992-04-13 | 60 min |
| Season 1992 | Episode 14 | Iceman | 1992-04-27 | 60 min |
| Season 1992 | Episode 15 | Taking the Credit | 1992-05-11 | 60 min |
| Season 1992 | Episode 16 | Fast Life in the Food Chain | 1992-05-18 | 60 min |
| Season 1992 | Episode 17 | Dodging Doomsday | 1992-06-01 | 60 min |
| Season 1992 | Episode 18 | A Question of Sport... | 1992-06-08 | 60 min |
| Season 1992 | Episode 19 | Genes R Us | 1992-06-15 | 60 min |
| Season 1993 | Episode 1 | Awakening the Frozen Addicts | 1993-01-04 | 60 min |
| Season 1993 | Episode 2 | Cheating Time | 1993-01-11 | 60 min |
| Season 1993 | Episode 3 | TB - The Forgotten Plague | 1993-01-18 | 60 min |
| Season 1993 | Episode 4 | No Ordinary Genius (1) | 1993-01-25 | 60 min |
| Season 1993 | Episode 5 | No Ordinary Genius (2) | 1993-02-01 | 60 min |
| Season 1993 | Episode 6 | Mars Alive | 1993-02-08 | 60 min |
| Season 1993 | Episode 7 | Suggers, Fruggers and Data-Muggers | 1993-02-15 | 60 min |
| Season 1993 | Episode 8 | The Pyramid Builders | 1993-02-22 | 60 min |
| Season 1993 | Episode 9 | Here Be Monsters | 1993-03-01 | 60 min |
| Season 1993 | Episode 10 | Iceman (Update) | 1993-03-08 | 60 min |
| Season 1993 | Episode 11 | Whatever Happened to Star Wars | 1993-03-15 | 60 min |
| Season 1993 | Episode 12 | Resurrecting the Dead Sea Scrolls | 1993-03-22 | 60 min |
| Season 1993 | Episode 13 | Dante Goes to Hell | 1993-03-29 | 60 min |
| Season 1993 | Episode 14 | Ghosts in the Dinosaur Graveyard | 1993-04-05 | 60 min |
| Season 1993 | Episode 15 | The New Alchemists | 1993-04-19 | 60 min |
| Season 1993 | Episode 16 | Allergic to the 20th Century | 1993-05-10 | 60 min |
| Season 1993 | Episode 17 | Wot U Looking At? | 1993-05-24 | 60 min |
| Season 1993 | Episode 18 | The Electronic Frontier | 1993-06-07 | 60 min |
| Season 1993 | Episode 19 | A Vital Poison | 1993-06-14 | 60 min |
| Season 1993 | Episode 20 | Chimp Talk | 1993-06-21 | 60 min |
| Season 1993 | Episode 21 | Life is Impossible | 1993-06-28 | 60 min |
| Season 1994 | Episode 1 | Small Arms, Soft Targets | 1994-01-10 | 60 min |
| Season 1994 | Episode 2 | The Last Mammoth | 1994-01-17 | 60 min |
| Season 1994 | Episode 3 | The Man Who Made Up His Mind | 1994-01-24 | 60 min |
| Season 1994 | Episode 4 | Genie | 1994-01-31 | 60 min |
| Season 1994 | Episode 5 | Death Wish - The Untold Story | 1994-02-07 | 60 min |
| Season 1994 | Episode 6 | Air Crash - The Deadly Puzzle | 1994-02-14 | 60 min |
| Season 1994 | Episode 7 | Hunt for the Doomsday Asteroid | 1994-02-28 | 60 min |
| Season 1994 | Episode 8 | Hubble Vision | 1994-03-07 | 60 min |
| Season 1994 | Episode 9 | Some Like It Hot | 1994-03-14 | 60 min |
| Season 1994 | Episode 10 | Too Close to the Sun | 1994-03-21 | 60 min |
| Season 1994 | Episode 11 | Sir Walter's Journey | 1994-03-28 | 60 min |
| Season 1994 | Episode 12 | After the Flood | 1994-04-18 | 60 min |
| Season 1994 | Episode 13 | Against the Clock | 1994-04-25 | 60 min |
| Season 1994 | Episode 14 | The Blueprints of Genocide | 1994-05-09 | 60 min |
| Season 1994 | Episode 15 | Ulcer Wars | 1994-05-16 | 60 min |
| Season 1994 | Episode 16 | Deaf Whale, Dead Whale | 1994-11-07 | 60 min |
| Season 1994 | Episode 17 | Whispers of Creation | 1994-11-14 | 60 min |
| Season 1994 | Episode 18 | The Predator | 1994-11-21 | 60 min |
| Season 1994 | Episode 19 | Close Encounters | 1994-11-28 | 60 min |
| Season 1994 | Episode 20 | Orange Sherbet Kisses | 1994-12-12 | 60 min |
| Season 1994 | Episode 21 | Designer Wines | 1994-12-19 | 60 min |
| Season 1995 | Episode 1 | Tibet - The Ice Mother | 1995-01-09 | 60 min |
| Season 1995 | Episode 2 | Russia's Deep Secrets | 1995-01-16 | 60 min |
| Season 1995 | Episode 3 | Bones of Contention | 1995-01-23 | 60 min |
| Season 1995 | Episode 4 | Siamese Twins | 1995-01-30 | 60 min |
| Season 1995 | Episode 5 | Too Big Too Soon? | 1992-02-20 | 60 min |
| Season 1995 | Episode 6 | Farewell Fantastic Venus | 1995-02-27 | 60 min |
| Season 1995 | Episode 7 | Exodus | 1995-03-06 | 60 min |
| Season 1995 | Episode 8 | The Betrayers | 1995-03-13 | 60 min |
| Season 1995 | Episode 9 | Icon Earth | 1995-03-20 | 60 min |
| Season 1995 | Episode 10 | The I-Bomb | 1995-03-27 | 60 min |
| Season 1995 | Episode 11 | Foetal Attraction | 1995-04-03 | 60 min |
| Season 1995 | Episode 12 | Cracks in the Crust | 1995-04-10 | 60 min |
| Season 1995 | Episode 13 | Hearing Voices | 1995-04-24 | 60 min |
| Season 1995 | Episode 14 | Liar | 1995-10-30 | 60 min |
| Season 1995 | Episode 15 | The Human Laboratory | 1995-11-06 | 60 min |
| Season 1995 | Episode 16 | Nanotopia | 1995-11-13 | 60 min |
| Season 1995 | Episode 17 | Hunt for the Doomsday Asteroid (Update) | 1995-11-20 | 60 min |
| Season 1995 | Episode 18 | A Code in the Nose | 1995-11-27 | 60 min |
| Season 1995 | Episode 19 | AIDS: Behind Closed Doors | 1995-12-04 | 60 min |
| Season 1995 | Episode 20 | The Runaway Mountain | 1995-12-11 | 60 min |
| Season 1996 | Episode 1 | The Butchers of Boxgrove | 1996-01-08 | 60 min |
| Season 1996 | Episode 2 | Fermat's Last Theorem | 1996-01-15 | 60 min |
| Season 1996 | Episode 3 | A Miracle for Cancer ? | 1996-01-22 | 60 min |
| Season 1996 | Episode 4 | Nature's Numbers | 1996-01-29 | 60 min |
| Season 1996 | Episode 5 | The Gene Race | 1996-02-05 | 60 min |
| Season 1996 | Episode 6 | Masters of the Ionosphere | 1996-02-12 | 60 min |
| Season 1996 | Episode 7 | Assault on the Male (revisited) | 1996-02-26 | 60 min |
| Season 1996 | Episode 8 | Death by Design | 1996-03-04 | 60 min |
| Season 1996 | Episode 9 | The Planet Hunters | 1996-03-11 | 60 min |
| Season 1996 | Episode 10 | Inside Chernobyl's Sarcophagus (Update) | 1996-03-25 | 60 min |
| Season 1996 | Episode 11 | Fallout from Chernobyl | 1996-04-01 | 60 min |
| Season 1996 | Episode 12 | TV is Dead, Long Live TV | 1996-11-04 | 60 min |
| Season 1996 | Episode 13 | Aliens from Mars | 1996-11-11 | 60 min |
| Season 1996 | Episode 14 | Living Death | 1996-11-25 | 60 min |
| Season 1996 | Episode 15 | The Time Lords | 1996-12-02 | 60 min |
| Season 1996 | Episode 16 | Noah's Flood | 1996-12-16 | 60 min |
| Season 1997 | Episode 1 | Psychedelic Science | 1997-02-27 | 60 min |
| Season 1997 | Episode 2 | Fat Cats, Thin Mice | 1997-03-06 | 60 min |
| Season 1997 | Episode 3 | Shipwreck | 1997-03-13 | 60 min |
| Season 1997 | Episode 4 | Genius of the Jet | 1997-03-20 | 60 min |
| Season 1997 | Episode 5 | Smallpox on Death Row | 1997-03-27 | 60 min |
| Season 1997 | Episode 6 | Silent Children, New Language | 1997-04-03 | 60 min |
| Season 1997 | Episode 7 | Turned On by Danger | 1997-04-17 | 60 min |
| Season 1997 | Episode 8 | A Perfect Oil Spill | 1997-04-24 | 60 min |
| Season 1997 | Episode 9 | The Great Balloon Race | 1997-05-01 | 60 min |
| Season 1997 | Episode 10 | Crater of Death | 1997-09-11 | 60 min |
| Season 1997 | Episode 11 | Mind Over Body | 1997-09-18 | 60 min |
| Season 1997 | Episode 12 | Out of Asia | 1997-09-25 | 60 min |
| Season 1997 | Episode 13 | The Virus That Cures | 1997-10-09 | 60 min |
| Season 1997 | Episode 14 | The Man Who Lost His Body | 1997-10-16 | 60 min |
| Season 1997 | Episode 15 | Dawn of the Clone Age | 1997-10-23 | 60 min |
| Season 1998 | Episode 1 | Saddam's Secrets | 1998-02-19 | 60 min |
| Season 1998 | Episode 2 | Dr Miller and the Islanders | 1998-02-26 | 60 min |
| Season 1998 | Episode 3 | The Rainmaker | 1998-03-05 | 60 min |
| Season 1998 | Episode 4 | Hopeful Monsters | 1998-03-19 | 60 min |
| Season 1998 | Episode 5 | The Limits to Birth | 1998-03-26 | 60 min |
| Season 1998 | Episode 6 | Overkill | 1998-04-02 | 60 min |
| Season 1998 | Episode 7 | The Curse of Vesuvius | 1998-04-16 | 60 min |
| Season 1998 | Episode 8 | Mir Mortals | 1998-04-23 | 60 min |
| Season 1998 | Episode 9 | The Computer That Ate Hollywood | 1998-04-30 | 60 min |
| Season 1998 | Episode 10 | Magic Bullet | 1998-05-07 | 60 min |
| Season 1998 | Episode 11 | The Gulf War Jigsaw | 1998-05-14 | 60 min |
| Season 1998 | Episode 12 | Sexual Chemistry | 1998-09-10 | 60 min |
| Season 1998 | Episode 13 | Chimps on Death Row | 1998-10-01 | 60 min |
| Season 1998 | Episode 14 | Dinosaurs in Your Garden | 1998-10-08 | 60 min |
| Season 1998 | Episode 15 | Mosquito! | 1998-10-15 | 60 min |
| Season 1998 | Episode 16 | The Life and Times of Life and Time | 1998-10-22 | 60 min |
| Season 1998 | Episode 17 | Thalidomide: A Necessary Evil | 1998-10-29 | 60 min |
| Season 1998 | Episode 18 | Beyond a Joke | 1998-11-05 | 60 min |
| Season 1999 | Episode 1 | From Here to Infinity | 1999-01-28 | 60 min |
| Season 1999 | Episode 2 | Pandemic | 1999-02-04 | 60 min |
| Season 1999 | Episode 3 | Elephants or Ivory | 1999-02-11 | 60 min |
| Season 1999 | Episode 4 | Electric Heart | 1999-02-18 | 60 min |
| Season 1999 | Episode 5 | Sudden Death | 1999-02-25 | 60 min |
| Season 1999 | Episode 6 | New Star in Orbit | 1999-03-11 | 60 min |
| Season 1999 | Episode 7 | New Asteroid Danger | 1999-03-18 | 60 min |
| Season 1999 | Episode 8 | Skeleton Key | 1999-03-25 | 60 min |
| Season 1999 | Episode 9 | Wings of Angels | 1999-08-01 | 60 min |
| Season 1999 | Episode 10 | Mistaken Identity | 1999-11-11 | 60 min |
| Season 1999 | Episode 11 | Volcanoes of the Deep | 1999-11-18 | 60 min |
| Season 1999 | Episode 12 | Anatomy of an Avalanche | 1999-11-25 | 60 min |
| Season 1999 | Episode 13 | The Midas Formula | 1999-12-02 | 60 min |
| Season 2000 | Episode 1 | Breath of Life | 2000-01-13 | 60 min |
| Season 2000 | Episode 2 | Lost City of Nasca | 2000-01-20 | 60 min |
| Season 2000 | Episode 3 | The Diamond Makers | 2000-01-27 | 60 min |
| Season 2000 | Episode 4 | Supervolcanoes | 2000-02-03 | 60 min |
| Season 2000 | Episode 5 | Miracle in Orbit | 2000-02-10 | 60 min |
| Season 2000 | Episode 6 | Complete Obsession - Body Dysmorphia | 2000-02-17 | 60 min |
| Season 2000 | Episode 7 | Is GM Safe? | 2000-03-09 | 60 min |
| Season 2000 | Episode 8 | Planet Hunters | 2000-03-16 | 60 min |
| Season 2000 | Episode 9 | Constant Craving: The Science of Addiction | 2000-03-30 | 60 min |
| Season 2000 | Episode 10 | Moon Children | 2000-04-04 | 60 min |
| Season 2000 | Episode 11 | Mega-Tsunami: Wave of Destruction | 2000-10-12 | 60 min |
| Season 2000 | Episode 12 | Conjoined Twins | 2000-10-19 | 60 min |
| Season 2000 | Episode 13 | The Lost World of Lake Vostok | 2000-10-26 | 60 min |
| Season 2000 | Episode 14 | Vanished: The Plane That Disappeared | 2000-11-02 | 60 min |
| Season 2000 | Episode 15 | The Secret Treasures of Zeugma | 2000-11-09 | 60 min |
| Season 2000 | Episode 16 | The Valley of Life or Death | 2000-11-16 | 60 min |
| Season 2000 | Episode 17 | Extreme Dinosaurs | 2000-11-23 | 60 min |
| Season 2000 | Episode 18 | Supermassive Black Holes | 2000-11-30 | 60 min |
| Season 2000 | Episode 19 | The Boy Who Was Turned Into a Girl | 2000-12-07 | 60 min |
| Season 2000 | Episode 20 | Atlantis Reborn Again | 2000-12-14 | 60 min |
| Season 2001 | Episode 1 | The Mystery of the Miami Circle | 2001-01-25 | 60 min |
| Season 2001 | Episode 2 | The Missing Link | 2001-02-01 | 60 min |
| Season 2001 | Episode 3 | Killer Algae | 2001-02-08 | 60 min |
| Season 2001 | Episode 4 | Ecstasy and Agony | 2001-02-15 | 60 min |
| Season 2001 | Episode 5 | Snowball Earth | 2001-02-22 | 60 min |
| Season 2001 | Episode 6 | Taming the Problem Child | 2001-03-06 | 60 min |
| Season 2001 | Episode 7 | The Mystery of the Persian Mummy | 2001-09-20 | 60 min |
| Season 2001 | Episode 8 | The Ape That Took Over the World | 2001-10-04 | 60 min |
| Season 2001 | Episode 9 | Life Blood | 2001-10-11 | 60 min |
| Season 2001 | Episode 10 | The Death Star | 2001-10-18 | 60 min |
| Season 2001 | Episode 11 | Cloning the First Human | 2001-10-25 | 60 min |
| Season 2002 | Episode 1 | Helike - The Real Atlantis | 2002-01-10 | 60 min |
| Season 2002 | Episode 2 | Volcano Hell | 2002-01-17 | 60 min |
| Season 2002 | Episode 3 | Fatbusters | 2002-01-24 | 60 min |
| Season 2002 | Episode 4 | The Lost Pyramids of Caral | 2002-01-31 | 60 min |
| Season 2002 | Episode 5 | Death of the Iceman | 2002-02-07 | 60 min |
| Season 2002 | Episode 6 | Parallel Universes | 2002-02-14 | 60 min |
| Season 2002 | Episode 7 | The Dinosaur That Fooled the World | 2002-02-21 | 60 min |
| Season 2002 | Episode 8 | The Fall of the World Trade Center | 2002-03-07 | 60 min |
| Season 2002 | Episode 9 | Archimedes' Secret | 2002-03-14 | 60 min |
| Season 2002 | Episode 10 | The Mystery of the Jurassic | 2002-03-28 | 60 min |
| Season 2002 | Episode 11 | Killer Lakes | 2002-04-04 | 60 min |
| Season 2002 | Episode 12 | The A6 Murder | 2002-05-16 | 60 min |
| Season 2002 | Episode 13 | The England Patient | 2002-05-23 | 60 min |
| Season 2002 | Episode 14 | Freak Wave | 2002-11-14 | 60 min |
| Season 2002 | Episode 15 | Stone Age Columbus | 2002-11-21 | 60 min |
| Season 2002 | Episode 16 | Homeopathy: The Test | 2002-11-26 | 60 min |
| Season 2002 | Episode 17 | The Day the Earth Nearly Died | 2002-12-05 | 60 min |
| Season 2002 | Episode 18 | The Secret of El Dorado | 2002-12-19 | 60 min |
| Season 2003 | Episode 1 | The Mystery of Easter Island | 2003-01-09 | 60 min |
| Season 2003 | Episode 2 | Living Nightmare | 2003-01-16 | 60 min |
| Season 2003 | Episode 3 | Averting Armageddon | 2003-01-23 | 60 min |
| Season 2003 | Episode 4 | Dirty Bomb | 2003-01-30 | 60 min |
| Season 2003 | Episode 5 | Sexual Chemistry (Update) | 2003-02-13 | 60 min |
| Season 2003 | Episode 6 | The Day We Learned to Think | 2003-02-20 | 60 min |
| Season 2003 | Episode 7 | Trial and Error | 2003-02-27 | 60 min |
| Season 2003 | Episode 8 | Earthquake Storms | 2003-03-06 | 60 min |
| Season 2003 | Episode 9 | Life on Mars (Update) | 2003-03-27 | 60 min |
| Season 2003 | Episode 10 | The Secret Life of Caves | 2003-04-03 | 60 min |
| Season 2003 | Episode 11 | God on the Brain | 2003-04-17 | 60 min |
| Season 2003 | Episode 12 | Flight 587 | 2003-05-08 | 60 min |
| Season 2003 | Episode 13 | SARS: The True Story | 2003-05-29 | 60 min |
| Season 2003 | Episode 14 | The Big Chill | 2003-11-13 | 60 min |
| Season 2003 | Episode 15 | The Bible Code | 2003-11-20 | 60 min |
| Season 2003 | Episode 16 | Last Flight of the Columbia | 2003-11-27 | 60 min |
| Season 2003 | Episode 17 | The Hunt for an AIDS Vaccine | 2003-12-04 | 60 min |
| Season 2003 | Episode 18 | Percy Pilcher's Flying Machine | 2003-12-11 | 60 min |
| Season 2003 | Episode 19 | Time Trip | 2003-12-18 | 60 min |
| Season 2004 | Episode 1 | The Demonic Ape | 2004-01-08 | 60 min |
| Season 2004 | Episode 2 | The Moscow Theatre Siege | 2004-01-15 | 60 min |
| Season 2004 | Episode 3 | The Atkins Diet | 2004-01-22 | 60 min |
| Season 2004 | Episode 4 | Secrets of the Star Disc | 2004-01-29 | 60 min |
| Season 2004 | Episode 5 | The Dark Secret of Hendrik Schön | 2004-02-05 | 60 min |
| Season 2004 | Episode 6 | Thalidomide - A Second Chance? | 2004-02-12 | 60 min |
| Season 2004 | Episode 7 | Diamond Labs | 2004-03-04 | 60 min |
| Season 2004 | Episode 8 | T-Rex - Warrior or Wimp? | 2004-03-11 | 60 min |
| Season 2004 | Episode 9 | Project Poltergeist | 2004-03-18 | 60 min |
| Season 2004 | Episode 10 | The Truth of Troy | 2004-03-25 | 60 min |
| Season 2004 | Episode 11 | The Truth About Vitamins | 2004-09-16 | 60 min |
| Season 2004 | Episode 12 | King Solomon's Tablet of Stone | 2004-09-23 | 60 min |
| Season 2004 | Episode 13 | Derek Tastes of Earwax | 2004-09-30 | 60 min |
| Season 2004 | Episode 14 | What Really Killed the Dinosaurs? | 2004-10-07 | 60 min |
| Season 2004 | Episode 15 | Making Millions the Easy Way | 2004-10-14 | 60 min |
| Season 2004 | Episode 16 | Saturn - Lord of the Rings | 2004-10-21 | 60 min |
| Season 2004 | Episode 17 | The Hunt for the Supertwister | 2004-10-28 | 60 min |
| Season 2004 | Episode 18 | Dr. Money and the Boy with No Penis | 2004-11-04 | 60 min |
| Season 2005 | Episode 1 | Global Dimming | 2005-01-13 | 60 min |
| Season 2005 | Episode 2 | Einstein's Unfinished Symphony | 2005-01-20 | 60 min |
| Season 2005 | Episode 3 | Einstein's Equation of Life and Death | 2005-01-27 | 60 min |
| Season 2005 | Episode 4 | Living with ADHD | 2005-03-03 | 60 min |
| Season 2005 | Episode 5 | Neanderthal | 2005-02-10 | 60 min |
| Season 2005 | Episode 6 | An Experiment to Save the World | 2005-02-17 | 60 min |
| Season 2005 | Episode 7 | Who's Afraid of Designer Babies? | 2005-02-24 | 60 min |
| Season 2005 | Episode 8 | The Lost Civilisation of Peru | 2005-03-03 | 60 min |
| Season 2005 | Episode 9 | The Next Megaquake | 2005-05-22 | 60 min |
| Season 2005 | Episode 10 | Does the MMR Jab Cause Autism? | 2005-05-29 | 60 min |
| Season 2005 | Episode 11 | Malaria: Defeating the Curse | 2005-06-05 | 60 min |
| Season 2005 | Episode 12 | Tsunami: Naming the Dead | 2005-09-01 | 60 min |
| Season 2005 | Episode 13 | The Hawking Paradox | 2005-09-08 | 60 min |
| Season 2005 | Episode 14 | The Mystery of the Human Hobbit | 2005-09-15 | 60 min |
| Season 2005 | Episode 15 | The Doctor Who Makes People Walk Again? | 2005-10-06 | 60 min |
| Season 2005 | Episode 16 | Can Fish Make My Child Smart? | 2005-10-06 | 60 min |
| Season 2005 | Episode 17 | Madagascar - A Treetop Odyssey | 2005-10-13 | 60 min |
| Season 2005 | Episode 18 | Titan. A Place Like Home? | 2005-11-10 | 60 min |
| Season 2005 | Episode 19 | The 7/7 Bombers: A Psychological Investigation | 2005-12-08 | 60 min |
| Season 2005 | Episode 20 | The Ghost in Your Genes | 2005-12-15 | 60 min |
| Season 2006 | Episode 1 | The Life and Times of El Niño | 2006-01-03 | 60 min |
| Season 2006 | Episode 2 | Space Tourists | 2006-01-12 | 60 min |
| Season 2006 | Episode 3 | Waiting for a Heartbeat | 2006-01-19 | 60 min |
| Season 2006 | Episode 4 | A War on Science | 2006-01-26 | 60 min |
| Season 2006 | Episode 5 | The Lost City of New Orleans | 2006-02-02 | 60 min |
| Season 2006 | Episode 6 | Most of Our Universe is Missing | 2006-02-09 | 60 min |
| Season 2006 | Episode 7 | Winning Gold in 2012 | 2006-03-18 | 60 min |
| Season 2006 | Episode 8 | The Woman Who Thinks Like a Cow | 2006-06-08 | 60 min |
| Season 2006 | Episode 9 | The Genius Sperm Bank | 2006-06-15 | 60 min |
| Season 2006 | Episode 10 | Bye Bye Planet Pluto | 2006-06-22 | 60 min |
| Season 2006 | Episode 11 | We Love Cigarettes | 2006-06-29 | 60 min |
| Season 2006 | Episode 12 | Nuclear Nightmares | 2006-07-13 | 60 min |
| Season 2006 | Episode 13 | Tutankhamun's Fireball | 2006-07-20 | 60 min |
| Season 2006 | Episode 14 | Survivors Guide to Plane Crashes | 2006-10-03 | 60 min |
| Season 2006 | Episode 15 | Chimps Are People Too | 2006-10-10 | 60 min |
| Season 2006 | Episode 16 | The Worlds First Face Transplant | 2006-10-17 | 60 min |
| Season 2006 | Episode 17 | Human v2.0 | 2006-10-24 | 60 min |
| Season 2006 | Episode 18 | The Great Robot Race | 2006-10-31 | 60 min |
| Season 2006 | Episode 19 | Pandemic | 2006-11-07 | 60 min |
| Season 2006 | Episode 20 | We Are the Aliens | 2006-11-14 | 60 min |
| Season 2007 | Episode 1 | My Pet Dinosaur | 2007-03-13 | 60 min |
| Season 2007 | Episode 2 | The Elephant's Guide to Sex | 2007-03-20 | 60 min |
| Season 2007 | Episode 3 | Prof Regan's Beauty Parlour | 2007-03-27 | 60 min |
| Season 2007 | Episode 4 | Mad But Glad | 2007-04-03 | 60 min |
| Season 2007 | Episode 5 | Moon for Sale | 2007-04-10 | 60 min |
| Season 2007 | Episode 6 | Battle of the Brains | 2007-04-17 | 60 min |
| Season 2007 | Episode 7 | Skyscraper Fire Fighters | 2007-04-24 | 60 min |
| Season 2007 | Episode 8 | The Six Billion Dollar Experiment | 2007-05-01 | 60 min |
| Season 2007 | Episode 9 | How to Commit the Perfect Murder | 2007-05-08 | 60 min |
| Season 2008 | Episode 1 | How to Kill a Human Being | 2008-01-15 | 60 min |
| Season 2008 | Episode 2 | Total Isolation | 2008-01-22 | 60 min |
| Season 2008 | Episode 3 | What on Earth is Wrong with Gravity? | 2008-01-29 | 60 min |
| Season 2008 | Episode 4 | Is Alcohol Worse Than Ecstasy? | 2008-02-05 | 60 min |
| Season 2008 | Episode 5 | How to Make Better Decisions | 2008-02-12 | 60 min |
| Season 2008 | Episode 6 | How to Live to Be 101 | 2008-02-19 | 60 min |
| Season 2008 | Episode 7 | Prof. Regan's Supermarket Secrets | 2008-02-26 | 60 min |
| Season 2008 | Episode 8 | Are We Alone in the Universe? | 2008-03-04 | 60 min |
| Season 2008 | Episode 9 | How Much is Your Dead Body Worth? | 2008-03-18 | 60 min |
| Season 2008 | Episode 10 | How Does Your Memory Work? | 2008-03-25 | 60 min |
| Season 2008 | Episode 11 | The President's Guide to Science | 2008-09-16 | 60 min |
| Season 2008 | Episode 12 | How Mad Are You? (1 of 2) | 2008-11-11 | 60 min |
| Season 2008 | Episode 13 | How Mad Are You? (2 of 2) | 2008-11-18 | 60 min |
| Season 2008 | Episode 14 | Jimmy's GM Food Fight | 2008-11-25 | 60 min |
| Season 2008 | Episode 15 | Do You Know What Time It Is? | 2008-12-02 | 60 min |
| Season 2008 | Episode 16 | Allergy Planet | 2008-12-09 | 60 min |
| Season 2008 | Episode 17 | Where's My Robot? | 2008-12-16 | 60 min |
| Season 2009 | Episode 1 | Why Are Thin People Not Fat? | 2009-01-26 | 60 min |
| Season 2009 | Episode 2 | Cannabis: The Evil Weed? | 2009-02-03 | 60 min |
| Season 2009 | Episode 3 | Why Do We Dream? | 2009-02-10 | 60 min |
| Season 2009 | Episode 4 | Can We Make a Star on Earth? | 2009-02-17 | 60 min |
| Season 2009 | Episode 5 | The Secret Life of Your Bodyclock | 2009-02-24 | 60 min |
| Season 2009 | Episode 6 | What's the Problem with Nudity? | 2009-03-03 | 60 min |
| Season 2009 | Episode 7 | How to Survive a Disaster | 2009-03-10 | 60 min |
| Season 2009 | Episode 8 | Who Do You Want Your Child to Be? | 2009-03-17 | 60 min |
| Season 2009 | Episode 9 | Why Can't We Predict Earthquakes? | 2009-03-24 | 60 min |
| Season 2009 | Episode 10 | Alan and Marcus Go Forth and Multiply | 2009-03-31 | 60 min |
| Season 2009 | Episode 11 | How Violent Are You? | 2009-05-12 | 60 min |
| Season 2009 | Episode 12 | Do I Drink Too Much? | 2009-10-13 | 60 min |
| Season 2009 | Episode 13 | The Secret You | 2009-10-20 | 60 min |
| Season 2009 | Episode 14 | Fix Me | 2009-10-27 | 60 min |
| Season 2009 | Episode 15 | Who's Afraid of a Big Black Hole? | 2009-11-03 | 60 min |
| Season 2009 | Episode 16 | Why Do We Talk? | 2009-11-10 | 60 min |
| Season 2009 | Episode 17 | How Long is a Piece of String? | 2009-11-17 | 60 min |
| Season 2009 | Episode 18 | How Many People Can Live on Planet Earth? | 2009-12-09 | 60 min |
| Season 2010 | Episode 1 | The Secret Life of the Dog | 2010-01-06 | 60 min |
| Season 2010 | Episode 2 | Why Do Viruses Kill? | 2010-01-13 | 60 min |
| Season 2010 | Episode 3 | Pill Poppers | 2010-01-20 | 60 min |
| Season 2010 | Episode 4 | Don't Grow Old | 2010-02-03 | 60 min |
| Season 2010 | Episode 5 | To Infinity and Beyond | 2010-02-10 | 60 min |
| Season 2010 | Episode 6 | What Makes a Genius? | 2010-02-17 | 60 min |
| Season 2010 | Episode 7 | Did Cooking Make Us Human? | 2010-03-02 | 60 min |
| Season 2010 | Episode 8 | Is Everything We Know About the Universe Wrong? | 2010-03-09 | 60 min |
| Season 2010 | Episode 9 | Back from the Dead | 2010-09-27 | 60 min |
| Season 2010 | Episode 10 | The Death of the Oceans | 2010-10-04 | 60 min |
| Season 2010 | Episode 11 | What Happened Before the Big Bang? | 2010-10-11 | 60 min |
| Season 2010 | Episode 12 | Is Seeing Believing? | 2010-10-18 | 60 min |
| Season 2010 | Episode 13 | Miracle Cure? A Decade of the Human Genome | 2010-10-25 | 60 min |
| Season 2010 | Episode 14 | Asteroids - The Good, the Bad and the Ugly | 2010-11-03 | 60 min |
| Season 2010 | Episode 15 | Deepwater Disaster - The Untold Story | 2010-11-16 | 60 min |
| Season 2011 | Episode 1 | What is One Degree? | 2011-01-10 | 60 min |
| Season 2011 | Episode 2 | What is Reality? | 2011-01-17 | 60 min |
| Season 2011 | Episode 3 | Science Under Attack | 2011-01-24 | 60 min |
| Season 2011 | Episode 4 | The Secret World of Pain | 2011-01-31 | 60 min |
| Season 2011 | Episode 5 | Surviving a Car Crash | 2011-02-07 | 60 min |
| Season 2011 | Episode 6 | How to Mend a Broken Heart | 2011-02-14 | 60 min |
| Season 2011 | Episode 7 | Are We Still Evolving? | 2011-03-01 | 60 min |
| Season 2011 | Episode 8 | Predators in Your Backyard | 2011-03-08 | 60 min |
| Season 2011 | Episode 9 | Do You See What I See | 2011-08-08 | 60 min |
| Season 2011 | Episode 10 | Seeing Stars | 2011-08-15 | 60 min |
| Season 2011 | Episode 11 | The Nine Months That Made You | 2011-08-22 | 60 min |
| Season 2011 | Episode 12 | The Core | 2011-08-31 | 60 min |
| Season 2011 | Episode 13 | Are You Good or Evil? | 2011-09-07 | 60 min |
| Season 2011 | Episode 14 | Fukushima: Is Nuclear Power Safe? | 2011-09-14 | 60 min |
| Season 2012 | Episode 1 | Playing God | 2012-01-17 | 60 min |
| Season 2012 | Episode 2 | The Truth About Exercise | 2012-02-28 | 60 min |
| Season 2012 | Episode 3 | Solar Storms: The Threat to Planet Earth | 2012-03-06 | 60 min |
| Season 2012 | Episode 4 | Out of Control? | 2012-03-13 | 60 min |
| Season 2012 | Episode 5 | The Truth About Fat | 2012-03-20 | 60 min |
| Season 2012 | Episode 6 | Global Weirding | 2012-03-27 | 60 min |
| Season 2012 | Episode 7 | The Hunt for AI | 2012-04-03 | 60 min |
| Season 2012 | Episode 8 | Defeating Cancer | 2012-04-10 | 60 min |
| Season 2012 | Episode 9 | The Transit of Venus | 2012-06-05 | 60 min |
| Season 2012 | Episode 10 | The Truth About Looking Younger | 2012-07-23 | 60 min |
| Season 2012 | Episode 11 | Mission to Mars | 2012-07-30 | 60 min |
| Season 2012 | Episode 12 | Eat, Fast and Live Longer | 2012-08-06 | 60 min |
| Season 2012 | Episode 13 | How Big is the Universe? | 2012-08-27 | 60 min |
| Season 2012 | Episode 14 | How Small is the Universe? | 2012-09-03 | 60 min |
| Season 2012 | Episode 15 | Defeating the Superbugs | 2012-09-10 | 60 min |
| Season 2013 | Episode 1 | The Creative Brain: How Insight Works | 2013-03-14 | 60 min |
| Season 2013 | Episode 2 | How to Avoid Mistakes in Surgery | 2013-03-21 | 60 min |
| Season 2013 | Episode 3 | The Truth About Taste | 2013-03-28 | 60 min |
| Season 2013 | Episode 4 | The Age of Big Data | 2013-04-04 | 60 min |
| Season 2013 | Episode 5 | The Secret Life of the Cat | 2013-06-13 | 60 min |
| Season 2013 | Episode 6 | Little Cat Diaries | 2013-06-14 | 60 min |
| Season 2013 | Episode 7 | Fracking: The New Energy Rush | 2013-06-19 | 60 min |
| Season 2013 | Episode 8 | Swallowed by a Black Hole | 2013-06-26 | 60 min |
| Season 2013 | Episode 9 | What Makes Us Human? | 2013-07-03 | 60 min |
| Season 2013 | Episode 10 | The Truth About Personality | 2013-07-10 | 60 min |
| Season 2013 | Episode 11 | Monitor Me | 2013-08-12 | 60 min |
| Season 2013 | Episode 12 | Defeating the Hackers | 2013-08-19 | 60 min |
| Season 2013 | Episode 13 | Dinosaurs: The Hunt for Life | 2013-08-26 | 60 min |
| Season 2014 | Episode 1 | Sugar vs. Fat | 2014-01-29 | 60 min |
| Season 2014 | Episode 2 | Swallowed by a Sink Hole | 2014-02-03 | 60 min |
| Season 2014 | Episode 3 | Man on Mars - Mission to the Red Planet | 2014-02-10 | 60 min |
| Season 2014 | Episode 4 | The Power of the Placebo | 2014-02-17 | 60 min |
| Season 2014 | Episode 5 | How You Really Make Decisions | 2014-02-24 | 60 min |
| Season 2014 | Episode 6 | Living with Autism | 2014-04-01 | 60 min |
| Season 2014 | Episode 7 | The £10 Million Challenge | 2014-05-22 | 60 min |
| Season 2014 | Episode 8 | Where is Flight MH370? | 2014-06-17 | 60 min |
| Season 2014 | Episode 9 | What's Wrong with Our Weather? | 2014-07-17 | 60 min |
| Season 2014 | Episode 10 | Should I Eat Meat? - The Big Health Dilemma | 2014-08-18 | 60 min |
| Season 2014 | Episode 11 | Should I Eat Meat? - How to Feed the Planet | 2014-08-20 | 60 min |
| Season 2014 | Episode 12 | Allergies: Modern Life and Me | 2014-08-27 | 60 min |
| Season 2014 | Episode 13 | Inside the Dark Web | 2014-09-03 | 60 min |
| Season 2014 | Episode 14 | Ebola - The Search for a Cure | 2014-09-10 | 60 min |
| Season 2014 | Episode 15 | Is Your Brain Male or Female? | 2014-09-29 | 60 min |
| Season 2015 | Episode 1 | Secrets of the Solar System | 2015-03-03 | 60 min |
| Season 2015 | Episode 2 | Aftershock: The Hunt for Gravitational Waves | 2015-03-10 | 60 min |
| Season 2015 | Episode 3 | Dancing in the Dark - The End of Physics? | 2015-03-17 | 60 min |
| Season 2015 | Episode 4 | 70 Million Animal Mummies: Egypt's Dark Secret | 2015-05-11 | 60 min |
| Season 2015 | Episode 5 | Is Binge Drinking Really That Bad? | 2015-05-20 | 60 min |
| Season 2015 | Episode 6 | The Trouble with Space Junk | 2015-08-05 | 60 min |
| Season 2015 | Episode 7 | Are Health Tests Really a Good Idea? | 2015-08-12 | 60 min |
| Season 2015 | Episode 8 | First Britons | 2015-08-19 | 60 min |
| Season 2015 | Episode 9 | OCD: A Monster in My Mind | 2015-08-26 | 60 min |
| Season 2015 | Episode 10 | Which Universe Are We In? | 2015-09-02 | 60 min |
| Season 2015 | Episode 11 | Cosmic Dawn: The Real Moment of Creation | 2015-09-09 | 60 min |
| Season 2015 | Episode 12 | Are Video Games Really That Bad? | 2015-09-16 | 60 min |
| Season 2016 | Episode 1 | The Immortalist | 2016-03-16 | 60 min |
| Season 2016 | Episode 2 | Project Greenglow - The Quest for Gravity Control | 2016-03-23 | 60 min |
| Season 2016 | Episode 3 | The Mystery of Dark Energy | 2016-03-30 | 60 min |
| Season 2016 | Episode 4 | Oceans of the Solar System | 2016-04-06 | 60 min |
| Season 2016 | Episode 5 | The End of the Solar System | 2016-04-13 | 60 min |
| Season 2016 | Episode 6 | Should We Close Our Zoos? | 2016-04-17 | 60 min |
| Season 2016 | Episode 7 | How to Find Love Online | 2016-04-25 | 60 min |
| Season 2016 | Episode 8 | Ice Station Antarctica | 2016-05-04 | 60 min |
| Season 2016 | Episode 9 | Curing Alzheimer's | 2016-05-11 | 60 min |
| Season 2016 | Episode 10 | E-Cigarettes: Miracle or Menace? | 2016-05-22 | 65 min |
| Season 2016 | Episode 11 | Why Are We Getting So Fat | 2016-06-07 | 60 min |
| Season 2016 | Episode 12 | Sports Doping - Winning at Any Cost? | 2016-07-19 | 60 min |
| Season 2016 | Episode 13 | Special - Inside Cern | 2016-08-10 | 60 min |
| Season 2016 | Episode 14 | My Amazing Twin | 2016-08-25 | 60 min |
| Season 2016 | Episode 15 | Jimmy Carr and the Science of Laughter | 2016-09-11 | 60 min |
| Season 2016 | Episode 16 | The Lost Tribes of Humanity | 2016-10-12 | 60 min |
| Season 2016 | Episode 17 | The Wildest Weather in the Universe | 2016-10-23 | 60 min |
| Season 2017 | Episode 1 | Clean Eating - The Dirty Truth | 2017-01-19 | 60 min |
| Season 2017 | Episode 2 | Hair Care Secrets | 2017-01-23 | 60 min |
| Season 2017 | Episode 3 | ADHD and Me with Rory Bremner | 2017-04-25 | 60 min |
| Season 2017 | Episode 4 | Why Did I Go Mad? | 2017-05-02 | 60 min |
| Season 2017 | Episode 5 | Strange Signals from Outer Space! | 2017-05-16 | 60 min |
| Season 2017 | Episode 6 | Volcanoes of the Solar System | 2017-05-23 | 60 min |
| Season 2017 | Episode 7 | Antarctica - Ice Station Rescue | 2017-06-07 | 60 min |
| Season 2017 | Episode 8 | Cyber Attack - The Day the NHS Stopped | 2017-06-12 | 60 min |
| Season 2017 | Episode 9 | 10 Things You Need to Know About the Future | 2017-06-19 | 60 min |
| Season 2017 | Episode 10 | Dawn of the Driverless Car | 2017-06-29 | 60 min |
| Season 2017 | Episode 11 | Dippy and the Whale | 2017-07-13 | 60 min |
| Season 2017 | Episode 12 | What Makes a Psychopath? | 2017-08-29 | 60 min |
| Season 2017 | Episode 13 | Mars - A Traveller's Guide | 2017-09-12 | 60 min |
| Season 2017 | Episode 14 | Goodbye Cassini - Hello Saturn | 2017-09-18 | 60 min |
| Season 2017 | Episode 15 | Being Transgender | 2017-09-26 | 60 min |
| Season 2018 | Episode 1 | My Amazing Brain: Richard's War | 2018-02-05 | 60 min |
| Season 2018 | Episode 2 | Teenagers vs Cancer: A User's Guide | 2018-06-26 | 60 min |
| Season 2018 | Episode 3 | How to Build a Time Machine | 2018-07-10 | 60 min |
| Season 2018 | Episode 4 | Spina Bifida & Me | 2018-07-26 | 60 min |
| Season 2018 | Episode 5 | Jupiter Revealed | 2018-08-07 | 60 min |
| Season 2018 | Episode 6 | Stopping Male Suicide | 2018-08-22 | 60 min |
| Season 2018 | Episode 7 | A Week Without Lying - The Honesty Experiment | 2018-08-29 | 60 min |
| Season 2018 | Episode 8 | The Placebo Experiment: Can My Brain Cure My Body? | 2018-10-04 | 60 min |
| Season 2018 | Episode 9 | Body Clock: What Makes Us Tick? | 2018-10-11 | 60 min |
| Season 2018 | Episode 10 | Avalanche: Making a Deadly Snowstorm | 2018-10-18 | 60 min |
| Season 2018 | Episode 11 | Vitamin Pills: Miracle or Myth? | 2018-10-25 | 60 min |
| Season 2018 | Episode 12 | Diagnosis on Demand? The Computer Will See You Now | 2018-11-01 | 60 min |
| Season 2018 | Episode 13 | The Contraceptive Pill: How Safe Is It? | 2018-11-21 | 59 min |
| Season 2019 | Episode 1 | We Need to Talk about Death | 2019-01-23 | 60 min |
| Season 2019 | Episode 2 | Alastair Campbell: Depression and Me | 2019-05-21 | 60 min |
| Season 2019 | Episode 3 | Britain's Next Air Disaster? Drones | 2019-07-01 | 60 min |
| Season 2019 | Episode 4 | The Honest Supermarket: What's Really in Our Food? | 2019-07-08 | 59 min |
| Season 2019 | Episode 5 | Inside the Social Network: Facebook's Difficult Year | 2019-07-16 | 60 min |
| Season 2019 | Episode 6 | The 250 Million Pound Cancer Cure | 2019-07-22 | 59 min |
| Season 2019 | Episode 7 | Cannabis: Miracle Medicine or Dangerous Drug? | 2019-08-28 | 60 min |
| Season 2020 | Episode 1 | Addicted to Painkillers? Britain's Opioid Crisis | 2020-01-16 | 59 min |
| Season 2020 | Episode 2 | Chris Packham: 7.7 Billion People and Counting | 2020-01-21 | 59 min |
| Season 2020 | Episode 3 | Toxic Town: The Corby Poisonings | 2020-03-23 | 60 min |
| Season 2020 | Episode 4 | Coronavirus Special - Part 1 | 2020-04-09 | 60 min |
| Season 2020 | Episode 5 | The Restaurant that Burns Off Calories | 2020-04-20 | 58 min |
| Season 2020 | Episode 6 | Hubble: The Wonders of Space Revealed | 2020-04-24 | 59 min |
| Season 2020 | Episode 7 | The Great British Intelligence Test | 2020-05-04 | 60 min |
| Season 2020 | Episode 8 | Coronavirus Special - Part 2 | 2020-05-19 | 60 min |
| Season 2020 | Episode 9 | What's the Matter with Tony Slattery? | 2020-05-21 | 60 min |
| Season 2020 | Episode 10 | Pluto: Back From the Dead | 2020-07-06 | 60 min |
| Season 2021 | Episode 1 | Feast to Save the Planet | 2021-01-04 | 60 min |
| Season 2021 | Episode 2 | Coronavirus Special - What We Know Now | 2021-02-25 | 60 min |
| Season 2021 | Episode 3 | Horizon Special: The Vaccine | 2021-06-16 | 90 min |
| Season 2022 | Episode 1 | How to Sleep Well with Michael Mosley | 2022-03-31 | 60 min |
| Season 2022 | Episode 2 | Making Sense of Cancer with Hannah Fry | 2022-06-02 | 60 min |
| Season 2022 | Episode 3 | Super Telescope: Mission to the Edge of the Universe | 2022-07-14 | 60 min |
