- 1 A Matter of Self-Defense
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
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
Horizon reports on the British Open University and how it operates.
Air Date: 1974-01-21
- 4 The Great Fish Hunt
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
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
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?
Horizon investigates reports of abuse of the Colorado river in the USA.
Air Date: 1974-02-18
- 8 The Future Goes Boom
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
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
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
Horizon looks back at the discovery and the development of anesthesia.
Air Date: 1974-04-29
- 12 The Hunting of the Quark
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
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
Horizon reports on bridges in Britain...how safe are they?
Air Date: 1974-06-03
- 15 Search for Life
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
Horizon investigates the subject of sleep in Britain and the USA.
Air Date: 1974-06-10
- 17 Who Needs Skills?
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
In this report, Horizon presents the state of hill farming in Wales.
Air Date: 1974-07-01
- 19 The Race for the Double Helix
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
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
Horizon explores the technological and economic reasons for the mining revival in Britain.
Air Date: 1974-07-22
- 22 What Price Steak?
Horizon reports on the beef crisis and rising prices.
Air Date: 1974-07-29
- 23 Listen and Be Loyal
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?
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
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
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
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
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
This story by Horizon reconstructs the true life story of Joey Deacon.
Air Date: 1974-12-09
- 30 The Neglected Harvest
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?
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
Horizon presents a dramatized documentary on the rise to power of Trofim Denisovich Lysenko, a young Ukrainian agriculturalist.
Air Date: 1974-12-30