January 7, 1977 9:00 pm
Horizon documents the life of crocodiles and alligators, and their breeding and exploitation.
January 14, 1977 9:00 pm
Horizon traces the history of the oral contraceptive pill through the last 60 years as told by its pioneers.
January 21, 1977 9:00 pm
Horizon looks at how recent excavations in Africa have changed the accepted ideas of man's origins and age.
February 4, 1977 9:00 pm
Horizon investigates Sociobiology, which is a study of human social behaviour based on zoological research into animal behaviour.
February 18, 1977 9:00 pm
In this episode, Horizon explores how animal experiments are carried out in Britain.
February 25, 1977 9:00 pm
Horizon presents a story that depicts an astonishingly harsh way of life of the Netsilik Eskimos whose whole life is based on seal hunting.
March 4, 1977 9:00 pm
This story by Horizon traces the efforts of astronomers and scientists through history to prove the existence of life on Mars.
March 11, 1977 9:00 pm
Horizon looks at an ecological study of the Ythan estuary in Scotland.
March 18, 1977 9:00 pm
In this episode, Horizon investigates research into solar energy in the USA, Japan, and the UK.
April 1, 1977 9:00 pm
Horizon explores the debate on human genetic engineering.
July 15, 1977 9:00 pm
BBC television documentary which explores, using live-action dramatisation, the life's work of Sir Isaac Newton, emphasising his sources of inspiration.
July 22, 1977 9:00 pm
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.
July 29, 1977 9:00 pm
This Horizon report is about Prof. Hubert Montagner and his study of non-verbal communication in young children, along with his findings.
August 5, 1977 9:00 pm
Horizon makes an investigation into plant biology.
August 26, 1977 9:00 pm
Horizon theorizes how life could be in 2002, using extracts from previous Horizon episodes.
September 2, 1977 9:00 pm
This is a report by Horizon on the successful clean-up of the River Thames in Britain.
September 9, 1977 9:00 pm
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.
September 16, 1977 9:00 pm
Horizon presents a profile on one of the UK's leading pathologists, Keith Simpson.
September 23, 1977 9:00 pm
Horizon takes a look at the progress of Charles Darwin's theory of evolution.
September 30, 1977 9:00 pm
This Horizon episode examines the growing British problem of attempted suicide by an overdose of drugs.
October 7, 1977 9:00 pm
Horizon presents evidence that links the drought cycle with the number of magnetically-hyperactive sunspots.
October 21, 1977 9:00 pm
Horizon presents the story of how the river Rhine has defended itself against progress.
December 2, 1977 9:00 pm
Horizon presents a report on the prize offered to the first person who could fly a prescribed figure of eight course.
December 9, 1977 9:00 pm
This episode of Horizon is a dramatized reconstruction of breakdown of Carl Gustav Jung on the road to insanity.
December 23, 1977 9:00 pm
Horizon explores a new science-based revolution in the production of wine.