Episode 1
Are You a Racist?
1h
Horizon presents a documentary about how white racists and black victims of racism volunteered to spend time in an isolated house living and talking about their prejudices.
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 23 episodes
Choose an episode, then use the watch options above for the show.
Episode 2
Genesis
1h
This Horizon episode is about the discovery of a molecular key which may literally unlock the mystery of life for all creatures.
Where to watch HorizonEpisode 3
Bitter Cold
1h
Horizon presents a documentary on scientists who take themselves to Antarctica in 1980 to act as physical and mental guinea pigs.
Where to watch HorizonEpisode 4
The Mould, the Myth and the Microbe
1h
Horizon explores the myth about the discovery of the antibiotic penicillin.
Where to watch HorizonEpisode 5
Outbreak: The Microbe Masters the Mould
1h
In this episode, Horizon explores the question of when antibiotics were first developed it seemed infectious disease might be eliminated, so what has gone wrong?
Where to watch HorizonEpisode 6
Science...Fiction?
1h
Horizon investigates the truths of science and it's theories.
Where to watch HorizonEpisode 7
The Children of Eve
1h
Horizon explores at the latest discoveries about just where modern man came from.
Where to watch HorizonEpisode 8
The New Face of Leprosy
1h
This episode of Horizon documents leprosy in the USA and India with a focus on medical developments for it's cure and control.
Where to watch HorizonEpisode 9
Hi-Tech à la Française
1h
Horizon investigates the remarkable technological transformation of France over the last 25 years.
Where to watch HorizonEpisode 10
In the Wake of HMS Sheffield
1h
Will the new strategies and weapons introduced because of the Falklands war be a match for the next generation of weapons? Horizon presents this documentary to answer that question.
Where to watch HorizonEpisode 11
AIDS: A Strange and Deadly Virus
1h
Horizon looks at the virus that causes AIDS and the research into vaccines and drugs being developed to counteract the devastating disease of the immune system.
Where to watch HorizonEpisode 12
The Case of the Frozen Addict
1h
In this documentary, Horizon reports on how doctors in America found that addicts using designer drugs developed Parkinson's Disease-like symptoms.
Where to watch HorizonEpisode 13
Nice Guys Finish First
1h
In the interview by Horizon, Richard Dawkins discusses selfishness and cooperation, arguing that evolution often favours co-operative behaviour, and focusing especially on the tit for tat strategy of the prisoner's dilemma game.
Where to watch HorizonEpisode 14
The Men Who Bottled a Cow
1h
This is an interesting Horizon presentation on decoys that look and smell like cows to the tsetse fly who carry a disease fatal to farm animals.
Where to watch HorizonEpisode 15
Twice Five Plus the Wings of a Bird
1h
Horizon researches how we acquire mathematical abilities in the first place.
Where to watch HorizonEpisode 16
What Makes an Animal Smart?
1h
This report by Horizon takes a look at the instinctive side of intelligence in animals that shows us that we owe more to instinct than we may care to think.
Where to watch HorizonEpisode 17
A Handful of Sugar with a Pinch of Salt
1h
Horizon presents a simple, but effective, cure for diarrea in young children; sugar and salt.
Where to watch HorizonEpisode 18
Uranus Encounter
1h
In this episode, Horizon brings you Voyager's encounter with Uranus and the mysteries that are being relayed back to the scientists.
Where to watch HorizonEpisode 19
Who Built Stonehenge?
1h
Horizon presents an interview with Prof. C. Renfrew as he questions the accepted wisdom about the origins of Stonehenge in England.
Where to watch HorizonEpisode 21
Battered Baby: From Generation to Generation
1h
This is the first part of a two-part series on battered children.
Where to watch HorizonEpisode 22
Battered Baby: Breaking the Chain
1h
This is the second part of a two-part series on battered children.
Where to watch HorizonEpisode 23
Doctors to Be
1hfinale
In a unique project, Horizon follows a group of medical students into the next century.
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