Episode 1
The Shadow of Breast Cancer
1h
Horizon presents a new study that has highlighted the case of breast cancer.
Where to watch Horizon
TV series
Horizon
1964TV-PG62 seasons7.4 / 10
Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
Availability
Not streaming in United States
Checked Jul 22, 2026
Horizon premiered February 4, 1964. We don't have a confirmed streaming, rental or purchase option yet.
Synopsis
Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
Season 29 episodes
Choose an episode, then use the watch options above for the show.
Episode 2
Pest Wars
1h
Horizon examines the advantages and disadvantages of biological pest control.
Where to watch HorizonEpisode 3
Molecules With Sunglasses
1h
About the original discovery in 1985 of a third form of solid carbon, named Buckminsterfullerene after the architect who invented geodesic domes. The two scientists who discovered the material glimpsed it for brief seconds only in their lasers but neither they nor other scientists subsequently could make the substance last long enough in the laser to prove their theory. Then in 1990, a couple of physicists with an arc-welder in a bell-jar found they could make as much Buckminsterfullerene as they liked, and industrial applications opened up, with talk of new polymers, molecular ball-bearings, lubricants and super- conductors. Meanwhile, the original discoverers were turning back to the fundamental questions surrounding the discovery, such as how and why does it form; does it exist in space or is it the solution to one of the great mysteries of the universe.
Where to watch HorizonEpisode 4
In Search of the Noble Savage
1h
Horizon explores the ecological track record of the North American Indians.
Episode credits
Guest stars Rayna Green, Ian Holm, Tim Ingold, Paul Martin, David Meltzer, David Harris, Abbot Sekaquaptewa
Episode 5
Malaria: Battle of the Merozoites
1h
In this episode, Horizon look at attempts to persuade major respected organizations to do controlled trials on a synthetic malaria vaccine.
Where to watch HorizonEpisode 6
The Black Sun
1h
Horizon follows five teams of scientists on the island of Mauna Kea in Hawaii as they wait for a solar eclipse.
Where to watch HorizonEpisode 7
Hitler's Bomb
1h
Horizon investigates how in 1939, the Nazis led the race for the atomic bomb. Did scientific errors rob Hitler of a victory over the allies?
Where to watch HorizonEpisode 8
An Expensive Theology
1h
This episode of Horizon looks at Britain's science spending and how it is falling behind it's competitors.
Where to watch HorizonEpisode 9
The Strange Life and Death of Dr. Turing
1h
Horizon presents the life and work of mathematician Dr. Alan Turing.
Where to watch HorizonEpisode 10
Hot Jam in the Doughnut
1h
This episode of Horizon is about how nuclear fusion has been heralded as the power of the future with the promise of clean affordable energy.
Where to watch HorizonEpisode 11
A Diet for a Lifetime
1h
Horizon presents a story about what a women eats before and during pregnancy can determine the diseases her children may suffer from later in their life.
Where to watch HorizonEpisode 12
Before Babel
1h
Horizon explores the development of languages all over the world and attempts to reconstruct the first spoken words.
Where to watch HorizonEpisode 13
The Man Who Moved the Mountains
1h
In this report, Horizon presents that scientific observations have shown that the landscape is constantly moving.
Episode credits
Written by Simon Lamb, David SingtonGuest stars James Hazeldine
Episode 14
Iceman
1h
Horizon reports on the investigation into a well-preserved human corpse found frozen in an Alpine glacier.
Where to watch HorizonEpisode 15
Taking the Credit
1h
Horizon investigates the claims by rival American and French scientists as to who first discovered the HIV virus.
Where to watch HorizonEpisode 16
Fast Life in the Food Chain
1h
In this story, Horizon presents an investigation into the research to make livestock and poultry grow bigger and stronger.
Where to watch HorizonEpisode 17
Dodging Doomsday
1h
Horizon brings you this report to explain when animal communities exceed carrying capacities of their environments, they crash spectacularly. Will this also happen to humans?
Where to watch HorizonEpisode 18
A Question of Sport...
1h
Horizon presents the current evidence of a massive sporting fraud in the former Eastern Germany that has now been uncovered. The evidence shows that the East German Olympic success through the 1980's was due in part to the sophisticated use of drugs, a practice which the East German state endorsed.
Where to watch HorizonEpisode 19
Genes R Us
1hfinale
This Horizon program looks at the stereotyped image of the scientist.
Where to watch HorizonEpisode information updated Jul 25, 2026
Available now in United States
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Cast
Richard Branson
Nicholas SoamesBob Brier
Robert Winston
Robert GalloTrevor R. Bryce
Joshua Wurman
Bill PatersonProduction details
- Status
- Returning Series
- Series type
- Documentary
- Episodes
- 1,173
- Original language
- English
Networks & production
BBC TwoUnited Kingdom
Themes
philosophyscience