Episode 1
The Forever Fuel
1h
Horizon presents an investigation into the potential and problems of using hydrogen as an alternative to existing fuels.
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 16 episodes
Choose an episode, then use the watch options above for the show.
Episode 2
In Search of Pegasus
1h
In this program, Horizon looks at the effort and money spent on the horse to produce the perfect specimen.
Where to watch HorizonEpisode 3
The Keys of Paradise
1h
Horizon follows the discovery of a chemical in the brain which has morphine-like properties.
Where to watch HorizonEpisode 4
Sweet Solutions
1h
Horizon presents the history and research into the uses of sugar.
Where to watch HorizonEpisode 5
Bronze Age Blast-Off
1h
In this documentary by Horizon, you are shown a revolution in archaeological dating has shown that metal technology was invented in Europe.
Where to watch HorizonEpisode 6
The Real Bionic Man
1h
Horizon explores the current state of research into the development of artificial replacements for various parts of the body.
Where to watch HorizonEpisode 7
A Mediterranean Prospect
1h
Horizon reports about the attempts to bring about cooperation between the Mediterranean countries to combat pollution of their seas.
Where to watch HorizonEpisode 8
Elements of Risk
1h
In this episode, Horizon looks at Britain's methods and plans for nuclear waste management and disposal of the fuel elements.
Where to watch HorizonEpisode 9
Mr. Ludwig's Tropical Dreamland
1h
Horizon presents a documentary that shows how part of the Amazon river area around the Rio Jari was developed with rice and forestry.
Where to watch HorizonEpisode 10
Where Nothing Happens Twice
1h
This is a Horizon documentary about Liam Hudson, noted psychologist at Brunel University as he challenges modern psychologists.
Where to watch HorizonEpisode 11
Journey Through the Human Body
1h
Horizon examines the work of Dr. Lennart Nilsson who has filmed the complete arterial system of the human body.
Where to watch HorizonEpisode 12
The Fight to Be Male
1h
This episode of Horizon looks at the recent scientific research into how humans become male or female.
Where to watch HorizonEpisode 13
The Robots Are Coming
1h
This Horizon documentary is about the increasing use of robots in industry, and the robot's abilities and weaknesses.
Where to watch HorizonEpisode 14
Mexican Oil Dance
1h
Horizon explores the effect of the Mexican oil boom on the country itself and world energy situation.
Where to watch HorizonEpisode 15
Tracks on the Oregon Trail
1h
Horizon investigates the environmental protection program going on in the state of Oregon in the USA. Oregon is the first state to clean up it's environment.
Where to watch HorizonEpisode 16
The Race to Reshape Cars
1h
In this episode, Horizon reports on the need to consider more aerodynamic designs for cars to improve fuel economy.
Where to watch HorizonEpisode 17
Dragnet for Diabetes
1h
Horizon presents a report on the research into diabetes to determine its causes, controlling measures, and the prevention of complications.
Where to watch HorizonEpisode 18
The Lost Waters of the Nile
1h
Horizon takes a trip down the Jonglei Canal which is under construction in Sudan and reports on the changes the new canal will bring to the country, and the rest of the world.
Where to watch HorizonEpisode 19
Survival of the Fastest
1h
This Horizon documentary describes the complete history and design of motorcycles which have significantly evolved over the past 80 years.
Where to watch HorizonEpisode 20
A Touch of Sensitivity
1h
This report by Horizon is about current research into the physical and psychological effects of touch, and the effects of touch deprivation.
Episode credits
Guest stars Vernon Joyner
Episode 21
A Treasury of Trees
1h
Horizon investigates how the British landscape is changing its appearance with native trees being replaced by imported species.
Where to watch HorizonEpisode 22
Darkness Visible
1h
Horizon examines the development of the relatively new science of x-ray astronomy.
Where to watch HorizonEpisode 23
Uranium Goes Critical
1h
This Horizon episode is all about Uranium; its history, the use of uranium for nuclear energy, the dangers of uranium, and the scarcity of the mineral.
Where to watch HorizonEpisode 24
The Fat in the Fire
1h
Horizon explores current research into the causes and cure for obesity.
Where to watch HorizonEpisode 25
Decade
1hfinale
In this episode by Horizon, G. R. Taylor presents his personal view of science based on previous Horizon episode clips from the 1970's.
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