Jan 10, 1983 · 1h
Horizon investigates if Britain should build a United States designed nuclear power station that uses a pressurized water reactor at its core.


Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
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Jan 10, 1983 · 1h
Horizon investigates if Britain should build a United States designed nuclear power station that uses a pressurized water reactor at its core.
Jan 17, 1983 · 1h
Horizon presents a report by Dr. Alison Jolly who discusses the country of Madagascar, just off of the west coast of Africa. Madagascar's ecology and conservation programs are in conflict with most third world economies.
Jan 24, 1983 · 1h
Horizon brings you a report about the discovery of two new, and unimaginably short-lived, subatomic particles called "W" and "Z".
Feb 7, 1983 · 1h
Horizon examines some of the effects that moderate amounts of alcohol can have on the body.
Feb 14, 1983 · 1h
In the Horizon documentary, we look new ways of using computers in classroom and to what effect computers in our schools will have in future.
Feb 21, 1983 · 1h
Horizon investigates the way girls and boys were taught science and related subjects at schools.
Feb 28, 1983 · 1h
Horizon reports on the state of scientific research in Britain and the past blunders of the National Research Development Council.
Mar 7, 1983 · 1h
In this Horizon documentary, we look back at the event surrounding the near extermination of the North American bison (buffalo) in the 1880's.
Mar 14, 1983 · 1h
The Horizon episode is about the Carsington Aqueduct Scheme in Derbyshire, England, and the massive excavation problems encountered during construction.
Mar 21, 1983 · 1h
Horizon presents a look at the current research into artificial computer intelligence.
Apr 11, 1983 · 1h
Horizon looks at the mental problem of schizophrenia and how madness is medically diagnosed.
Apr 18, 1983 · 1h
In this episode, Horizon investigates the nuclear accident which took place in the United States at the Three Mile Island nuclear power plant during March 1979.
Apr 25, 1983 · 1h
In this report, Horizon looks at the spread of the AIDS virus in the United States and their search for the cause and cure of the deadly disease.
Sep 26, 1983 · 1h
n this documentary, Horizon investigates the power of the mind for psychic phenomena; telepathy, clairvoyance, precognition, and psychokinesis.
Oct 3, 1983 · 1h
Horizon investigates the current research into development and use of an artificial heart.
Oct 10, 1983 · 1h
This report by Horizon examines the experiments of Joseph Priestly on blood and oxygen in photosynthesis.
Oct 17, 1983 · 1h
This episode of Horizon features Prof. Stephen Hawking and how he copes with his severe disability, his scientific career, and his relationship with his students.
Oct 24, 1983 · 1h
Horizon presents a discussion on the use of animals for experiments.
Oct 31, 1983 · 1h
Looks at different ways of teaching a foreign language and contrasts them with the way babies and young children pick up their native language, without formal teaching.
Nov 7, 1983 · 1h
Horizon examines how the government of China presents the "one child per family" population policy to the people.
Nov 14, 1983 · 1h
Horizon investigates today's research into earthquakes and the usefulness of the findings.
Nov 28, 1983 · 1h
Horizon presents this documentary on how Britain deals with its mentally ill criminal offenders.
Dec 5, 1983 · 1h
In this report, Horizon outlines the latest research into cancer with specific reference to oncogenes.
Dec 12, 1983 · 1h
Horizon follows group of men and women going through basic training in Federal Bureau of Investigation (FBI) methods at the Academy in the United States.
Quick answers about this season's release timeline and episode lineup.
Horizon Season 20 premiered on January 10, 1983.
Horizon Season 20 has 24 episodes.
The season opens with Season 20 Episode 1, "Sizewell Under Pressure". It aired on January 10, 1983.
Go to Season 20 Episode 1