- 1 A Matter of Self-Defense
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This episode of Horizon explains how our body fights infections and cancers and brings us up-to-date on recent research in immunology.
Air Date: 1974-01-07
- 2 Bird Brain - The Mystery of Bird Navigation
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This episode of Horizon is about various experiments on migratory birds and homing pigeons to try and discover how they navigate.
Air Date: 1974-01-14
- 3 Never Too Late to Learn
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Horizon reports on the British Open University and how it operates.
Air Date: 1974-01-21
- 4 The Great Fish Hunt
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Horizon investigates how Britain has hunted fish in the past and how improved fish catching techniques have severely reduced fish stocks.
Air Date: 1974-01-28
- 5 Pedal Power
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This episode of Horizon is about the history of the bicycle and the possibility of it being able to ease the traffic problems in Britain.
Air Date: 1974-02-04
- 6 The Writing on the Wall
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In this episode, Horizon looks at connections between crime and poor housing design in the USA.
Air Date: 1974-02-11
- 7 Where Did the Colorado Go?
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Horizon investigates reports of abuse of the Colorado river in the USA.
Air Date: 1974-02-18
- 8 The Future Goes Boom
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Horizon examines the British Hudson Institute's methods and predictions for the future of economics.
Air Date: 1974-03-04
- 9 Fusion: The Energy Promise
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In this Horizon episode, we look at attempts by scientists to solve the energy crisis of future by building nuclear fusion reactors.
Air Date: 1974-03-11
- 10 The First Ten Years
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In this report, Prof. John Maynard Smith looks back at some of the subjects Horizon has presented since 1964.
Air Date: 1974-04-22
- 11 This Yankee Dodge Beats Mesmerism Hollow
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Horizon looks back at the discovery and the development of anesthesia.
Air Date: 1974-04-29
- 12 The Hunting of the Quark
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This Horizon episode is about the search for quarks, thought to be the substance of which electrons, protons, and neutrons are made of.
Air Date: 1974-05-06
- 13 A Noah's Ark for Europe
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Horizon investigates captive animal breeding to prevent extinction of animal species in the wild.
Air Date: 1974-05-13
- 14 Bridges: When It Comes to the Crunch
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Horizon reports on bridges in Britain...how safe are they?
Air Date: 1974-06-03
- 15 Search for Life
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Documentary about the origins of life which attempts to find out what happened in the one billion years before fossil evidence begins.
Air Date: 1974-06-10
- 16 The Secrets of Sleep
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Horizon investigates the subject of sleep in Britain and the USA.
Air Date: 1974-06-10
- 17 Who Needs Skills?
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In this episode of Horizon, you learn about transferring the basis of modern industry production from human skills to computer programmed machines.
Air Date: 1974-06-24
- 18 Hills of Promise
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In this report, Horizon presents the state of hill farming in Wales.
Air Date: 1974-07-01
- 19 The Race for the Double Helix
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This documentary of Horizon reports on the discovery of the structure of DNA in 1953 by Dr. Francis Crick and Prof. James Watson.
Air Date: 1974-07-08
- 20 The Immigrant Doctors
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In this episode, Horizon reports on the rising number of imigrant doctors working in the National Health System of Britain.
Air Date: 1974-07-15
- 21 Mines, Minerals and Men
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Horizon explores the technological and economic reasons for the mining revival in Britain.
Air Date: 1974-07-22
- 22 What Price Steak?
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Horizon reports on the beef crisis and rising prices.
Air Date: 1974-07-29
- 23 Listen and Be Loyal
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Horizon brings you a report by Tom Harrison on anti-nazi propaganda in Britain during World War II.
Air Date: 1974-08-05
- 24 Adam or Eve?
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This episode of Horizon investigates the role that hormones play in the stages of mammalian sexual development.
Air Date: 1974-08-12
- 25 An Unholy Scramble
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Horizon investigates some of the risks and problems involved in bringing oil from the North Sea ashore.
Air Date: 1974-09-02
- 26 Do as You Are Told
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This report by Horizon explores how far people are prepared to suppress their own moral scruples in the face of necessity to obey authority.
Air Date: 1974-10-28
- 27 The First Signs of Washoe
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Horizons reviews the scientific work of Americans in the field of research in communication with animals.
Air Date: 1974-11-04
- 28 The Other Way
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Horizon presents Dr. Schumacher's theory that use of modern technology could make the working week a creative experience.
Air Date: 1974-11-11
- 29 Joey
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This story by Horizon reconstructs the true life story of Joey Deacon.
Air Date: 1974-12-09
- 30 The Neglected Harvest
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Horizon investigates the developments and research in forestry which may now help to overcome shortage of timber.
Air Date: 1974-12-16
- 31 How on Earth Did They Do That?
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This documentary by Horizon reports on the development of cinematographic special effects from 1890's to date.
Air Date: 1974-12-23
- 32 The Lysenko Affair
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Horizon presents a dramatized documentary on the rise to power of Trofim Denisovich Lysenko, a young Ukrainian agriculturalist.
Air Date: 1974-12-30