Episode 1
The Killer Dust
1h
This investigative report by Horizon covers an investigation into the deaths of people who inhaled asbestos dust at Acre Mill, Yorkshire, England.
Where to watch Horizon
TV series
Horizon
1964TV-PG62 seasons7.5 / 10
Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
Availability
Not streaming in United States
Checked Sep 3, 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 12 episodes
Choose an episode, then use the watch options above for the show.
Episode 2
A Time to Be Born
50m
Investigates the growing tendency in hospitals to induce childbirth by injecting hormones into mothers. The practice has become increasingly widespread in recent years, and this film asks if induction is desirable, necessary, and safe.
Episode credits
Guest stars Rosemary Leach
Episode 3
The Unsafe Sea
1h
This episode of Horizon examines the problems of ship safety in the English Channel.
Where to watch HorizonEpisode 4
The Change of Life
1h
Horizon investigates the symptoms of menopause and the various degrees in which it occurs.
Where to watch HorizonEpisode 5
Project Fido
1h
This episode of Horizon shows the peril to man of the ever increasing dog population in the western world.
Where to watch HorizonEpisode 6
The Planets
1h
By the end of 1974, Mars, Venus, Mercury and Jupiter had all been visited by spacecraft. For the first time scientists saw in sharp detail the continents, mountains, valleys and volcanoes of other worlds. Tonight's programme shows how these geological features give clues to the way the planets evolved; how they have helped scientists in their attempt to reach back 5,000 million years to understand the formation of the solar system itself.
Episode credits
Guest stars Paul Vaughan
Episode 7
The Long, Long Walkabout
1h
This report by Horizon covers an investigation by a group of Australian scientists that looks into the origins and history of the Australian Aborigines.
Where to watch HorizonEpisode 8
The Overworked Miracle
1h
This report by Horizon describes the resistance to antibiotics, fast growing in all countries, and the dangers it could mean for the future.
Where to watch HorizonEpisode 9
Not the Cheapest, But the Best
1h
Horizon investigates the life and work of the great engineer, Isambard Kingdom Brunel.
Where to watch HorizonEpisode 10
A Spoonful of Roughage
1h
Horizon explores the effect of fibre in diet on the diseases of western world.
Where to watch HorizonEpisode 11
Brain Poison
1h
Horizon presents an investigation into the effects on health of lead in the urban atmosphere.
Where to watch HorizonEpisode 12
The Bulldog's Last Bark?
1h
This is a Horizon report on the building of the British military deterrent from the first decision to make it in 1941 until the present state of lethargy.
Episode credits
Directed by Brian Gibson
Episode 13
Benjamin
1h
This episode of Horizon follows the progress of Benjamin Pile, born on 22 November, 1974, at Oxford in Britain.
Where to watch HorizonEpisode 14
The McMaster Experiment
1h
This report by Horizon covers an experiment at McMaster University Medical School, in Ontario, Canada.
Where to watch HorizonEpisode 15
The Glazed Outlook
1h
Horizon investigates the attempts by the University of Newcastle in England to define and create an ideal living and working environment.
Where to watch HorizonEpisode 16
The Three Chord Trick
1h
Horizon explores the psychology of music, as it explains why music has such a powerful emotive effect in every society.
Where to watch HorizonEpisode 17
The Cleanest Place in the World
1h
This report by Horizon brings you scientists that are using Antarctica as a giant natural lab to study who has polluted Earth most; man or nature.
Where to watch HorizonEpisode 18
Strange Sleep
1h
Horizon investigates the discovery of gaseous anaesthetic from 1840 until the early years of 20th century.
Where to watch HorizonEpisode 19
The Greatest Advance Since the Wheel?
1h
Horizon reports on the history of superconductivity, from discovery, to the present.
Where to watch HorizonEpisode 20
How Do You Read?
1h
In this documentary, Horizon reports on the reading process; how it works for the fluent, and how it should be taught.
Where to watch HorizonEpisode 21
The Sickly Sea
1h
This episode of Horizon describes the various aspects of the pollution problem of the Mediterranean Sea.
Where to watch HorizonEpisode 22
Happy Catastrophe
1h
In this Horizon episode, Rene Thom's mathematical discovery of the catastrophe theory is investigated.
Where to watch HorizonEpisode 23
To Die, to Live - The Survivors of Hiroshima
1h
This documentary by Horizon commemorates the dropping of the A-bomb on Hiroshima, Japan on August 6, 1945.
Where to watch HorizonEpisode 24
Cannabis
1h
Horizon takes a look at the history of cannabis and the research on the effects of smoking marijuana.
Where to watch HorizonEpisode 25
Meditation and the Mind
1h
This is a report by Horizon on Transcendental Meditation, or TM, brought to the West by the Maharishi Mahesh Yogi.
Episode credits
Guest stars Paul Vaughan
Episode 26
The Trobriand Experiment
1hfinale
This documentary by Horizon is about the Trobriand islanders, whose culture is based on the Kula, a communication system of giving and receiving.
Where to watch HorizonEpisode information updated Aug 18, 2026
Available now in United States
What to watch instead
These shows are available now and closely match Horizon.
No close matches are available right now.
Browse new showsMore about Horizon
Cast
Richard Branson
Nicholas SoamesBob Brier
Robert Winston
Robert GalloTrevor R. Bryce
Joshua Wurman
Bill PatersonProduction details
- Status
- Returning Series
- Series type
- Documentary
- Episodes
- 1,174
- Original language
- English
Networks & production
BBC TwoUnited Kingdom
Themes
philosophyscience