Episode 1
Sons of Cain
1h
Horizon probes into whether aggressiveness is our birthright and can society live without violence?
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 4 episodes
Choose an episode, then use the watch options above for the show.
Episode 2
When Is a Body Dead? / How to Win Friends and Influence People
1h
Medical advances have made it possible for 'life' to be maintained in an unconscious patient who has irrevocable brain damage and who might also be dependent on artificial aids to circulation and respiration. Is it now meaningless to define 'death' as the cessation of a heart beat? Why do so many people have difficulty In communicating, or in simply getting-on with other people? Psychologists have now begun to analyse aspects of social behaviour in a way which they believe will lead to more pleasant and more effective human relationships.
Where to watch HorizonEpisode 3
How Best to Make a Man / How Best to Make a Scientist
1h
In this episode, Horizon looks at a new school of mathematics and physics near Novosibirsk in Siberia, Russia. This school uses a competition held for Russian school children to qualify new students.
Where to watch HorizonEpisode 4
Dynamo - The Life of Michael Faraday
1h
Horizon profiles the life of the greatest physical scientist: Michael Faraday. Crucial events of his scientific career in science are reconstructed.
Where to watch HorizonEpisode 5
Migraine
1h
Horizon looks at some research recently carried out into the migraine headache and the means to provide treatment for it.
Where to watch HorizonEpisode 6
How Safe Is Surgery?
1h
Horizon probes in the danger of germs and infection in the operating theater and the methods currently used to prevent contamination.
Where to watch HorizonEpisode 7
Sleep and Dreams
1h
Joel, a healthy young American, is reduced to a restless neurotic state after being deprived of his dreams for three nights. Mr Bates, an eighty-four-year-old ex-milk man, has never dreamed in his life, or so he says until he is woken by scientists in the middle of a dream trip to New York.
Where to watch HorizonEpisode 8
The Shape of War to Come
1h
Will the next major war be fought with biological and chemical weapons? What are the available weapons? What is the horror they can cause? Is there any moral justification for their use?
Where to watch HorizonEpisode 9
Memory
1h
Horizon explores the part of the human brain devoted to memory.
Where to watch HorizonEpisode 10
Masters of the Desert
1h
Horizon reports on the methods being used to irrigate the Negev Desert, making it fertile based on the methods of ancient civilizations.
Where to watch HorizonEpisode 11
Cancer - The Search for the Virus
1h
In this the first of two programmes dealing with cancer, Horizon looks at the intensive search now going on to discover whether a virus is one of the causes of cancer in humans and at the implications of this search in the treatment for such killer diseases as leukemia.
Where to watch HorizonEpisode 12
Cancer - The Smoker's Gamble
1h
Why is there doubt in so many people's minds about the relationship between lung cancer and smoking? Tonight's programme examines the latest scientific evidence in detail.
Where to watch HorizonEpisode 13
Science and the Supernatural
1h
Horizon explores the work in the developmental field of Extra Sensory Perception (ESP).
Where to watch HorizonEpisode 14
Hypnosis
1h
Horizon explores the misconceptions that people have about what hypnosis is and looks at the medical implications of what it can do.
Where to watch HorizonEpisode 15
The War of the Boffins
1h
During the human struggles between the British and German air forces ... another conflict was going on step by step, month by month. This was a secret war whose battles were lost or won unknown to the public: and only with difficulty is it comprehended even now by those outside the smalt high scientific circles concerned.
Where to watch HorizonEpisode 17
Aspects of Alcohol
1h
Horizon looks at a Scottish chemist's unusual application for whisky: a measure of radioactive carbon 14 used for determining how old an object is.
Where to watch HorizonEpisode 18
Lords of the Sea
1h
Horizon looks into how man is learning to survive in the oceans.
Where to watch HorizonEpisode 19
Will Art Last?
1h
In this episode, Horizon reports on new materials that are being used as art media by gaining inspiration from factory and industrial processes.
Where to watch HorizonEpisode 20
Air Safety: The Unknown Factor
1h
Horizon investigates air navigation and flight safety.
Where to watch HorizonEpisode 21
The Life and Death of the Pine Processionary
1h
Horizon reports on the problem of exterminating the pine processionary caterpillars infestation from the pine forests of Provence, Canada.
Where to watch HorizonEpisode 22
Koestler on Creativity
1h
Arthur Koestler talks about the psychological theories of creativity and the role of the mind in science and art.
Where to watch HorizonEpisode 23
The World of Ted Serios
1h
Horizon looks into the life of Ted Serios who claims to have psychic powers and to be able to project images onto film using only his thoughts.
Where to watch HorizonEpisode 24
Professor in Toyland
1hfinale
Prof. J. Sumner-Miller asks some questions for enquiring minds on walking, singing, swimming, and flying toys.
Where to watch HorizonEpisode information updated Jul 26, 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