Episode 1
A Smile for a Crocodile
1h
Horizon documents the life of crocodiles and alligators, and their breeding and exploitation.
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 14 episodes
Choose an episode, then use the watch options above for the show.
Episode 2
The Pill for the People
1h
Horizon traces the history of the oral contraceptive pill through the last 60 years as told by its pioneers.
Where to watch HorizonEpisode 3
The Ape That Stood Up
1h
Horizon looks at how recent excavations in Africa have changed the accepted ideas of man's origins and age.
Where to watch HorizonEpisode 4
The Human Animal
1h
Horizon investigates Sociobiology, which is a study of human social behaviour based on zoological research into animal behaviour.
Where to watch HorizonEpisode 5
The Guinea Pig and the Law
1h
In this episode, Horizon explores how animal experiments are carried out in Britain.
Where to watch HorizonEpisode 6
Hunters of the Seal
1h
Horizon presents a story that depicts an astonishingly harsh way of life of the Netsilik Eskimos whose whole life is based on seal hunting.
Where to watch HorizonEpisode 7
The Red Planet
1h
This story by Horizon traces the efforts of astronomers and scientists through history to prove the existence of life on Mars.
Where to watch HorizonEpisode 8
One of Nature's Hotels
1h
Horizon looks at an ecological study of the Ythan estuary in Scotland.
Where to watch HorizonEpisode 9
Dawn of the Solar Age
1h
In this episode, Horizon investigates research into solar energy in the USA, Japan, and the UK.
Where to watch HorizonEpisode 10
Genetic Roulette
1h
Horizon explores the debate on human genetic engineering.
Where to watch HorizonEpisode 11
The Amazing Doctor Newton
1h
BBC television documentary which explores, using live-action dramatisation, the life's work of Sir Isaac Newton, emphasising his sources of inspiration.
Where to watch HorizonEpisode 12
The Trouble with Medicine
1h
In this episode, Horizon looks at how, despite the high costs of the National Health System of Britain, more money doesn't mean better health.
Where to watch HorizonEpisode 13
Silent Speech
1h
This Horizon report is about Prof. Hubert Montagner and his study of non-verbal communication in young children, along with his findings.
Where to watch HorizonEpisode 14
The Green Machine
1h
Horizon makes an investigation into plant biology.
Where to watch HorizonEpisode 15
The River That Came Clean
1h
This is a report by Horizon on the successful clean-up of the River Thames in Britain.
Where to watch HorizonEpisode 16
Blueprints in the Bloodstream
1h
This Horizon episode reports on research by scientists into identifying a system of markers, such as tissue types on blood cells, which indicate the human being's vulnerability to a whole range of diseases like multiple sclerosis and diabetes, and the possibilities this presents for preventive medicine.
Where to watch HorizonEpisode 17
40 Years of Murder
1h
Horizon presents a profile on one of the UK's leading pathologists, Keith Simpson.
Where to watch HorizonEpisode 18
The Cry for Help
1h
This Horizon episode examines the growing British problem of attempted suicide by an overdose of drugs.
Where to watch HorizonEpisode 19
The Sunspot Mystery
1h
Horizon presents evidence that links the drought cycle with the number of magnetically-hyperactive sunspots.
Where to watch HorizonEpisode 20
The Rhine's Revenge
1h
Horizon presents the story of how the river Rhine has defended itself against progress.
Where to watch HorizonEpisode 21
Icarus' Children
1h
Horizon presents a report on the prize offered to the first person who could fly a prescribed figure of eight course.
Where to watch HorizonEpisode 22
The Healing Nightmare
1h
This episode of Horizon is a dramatized reconstruction of breakdown of Carl Gustav Jung on the road to insanity.
Where to watch HorizonEpisode 23
The Great Wine Revolution
1hfinale
Horizon explores a new science-based revolution in the production of wine.
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