- 1 The Missing Link
In this episode of Horizon, you find out how feasible it is to build a 35 mile long tunnel between Britain and France.
Air Date: 1972-01-03
- 2 Navajo - The Last Red Indians
Horizon explores the American Navajo indian tribe of New Mexico, in the United States.
Air Date: 1972-01-10
- 3 How Much Do You Smell?
Why do humans have such a poor sense of smell as compared to animals? Horizon investigates why.
Air Date: 1972-01-17
- 4 Parasite of Paradise
This story by Horizon reports on Malaria in the country of Gambia, in West Africa.
Air Date: 1972-01-31
- 5 The Day it Rained Periwinkles
Horizon investigates reports of strange phenomena and about what the scientific theory is about these phenomena.
Air Date: 1972-02-07
- 6 Are You Doing This for Me, Doctor?
Horizon explores if a doctor's treatment of the patient is always in the best interest of the patient.
Air Date: 1972-02-14
- 7 How They Sold Doomsday
In this episode, Horizon looks the the ecological movement, and the resistance against the movement in Britain, and the USA.
Air Date: 1972-02-21
- 8 For Love or Money
In this report by Horizon, the effect of boring jobs on industrial relations is looked at, along with work and job satisfaction.
Air Date: 1972-02-28
- 9 Whales, Dolphins and Men
Horizon looks at the life of whales and dolphins, and how they interact with man.
Air Date: 1972-03-06
- 10 What is Race?
Horizon investigates the various conceptions of "race" that have arisen since the 17th century.
Air Date: 1972-03-13
- 11 Man-Made Lakes in Africa
Horizon investigates the use of hydroelectric power in Africa, at Lake Kariba, Lake Volta, and Lake Nasser.
Air Date: 1972-03-20
- 12 Survival in the Sahara
This episode of Horizon follows the expedition of two German naturalists exploring the Northwestern desert of the Sahara in Africa.
Air Date: 1972-03-27
- 13 Mind Over Body
This story by Horizon is about American research into techniques for controlling bodily functions with the mind.
Air Date: 1972-04-10
- 14 Out of Volcanoes
In this report, Horizon looks at the various aspects of volcanoes and explaining the views of some vulcanologists.
Air Date: 1972-04-17
- 15 The Wizard Who Spat on the Floor
Horizon presents a study of Thomas Alva Edison and his achievements as an inventor.
Air Date: 1972-05-01
- 16 Rail Crash
Horizon reviews the history of train accidents and the new safety precautions to prevent them.
Air Date: 1972-05-08
- 17 Do You Dig National Parks?
Horizon investigates the threat to the Snowdonia National Park in Britain, from mining companies.
Air Date: 1972-05-22
- 18 Sorry I Opened My Mouth
Horizon reports on modern research in the prevention of tooth decay.
Air Date: 1972-06-12
- 19 The Way We Move
How do muscles contract and how are they are controlled from the brain through nerve fibers are the subjects of this Horizon episode.
Air Date: 1972-07-03
- 20 The Life that Lives on Man
This episode of Horizon explores bacteria and other creatures that live on our skin and in our hair.
Air Date: 1972-07-10
- 21 Sex Can Be a Problem
In this episode by Horizon, we take a look at sexual problems, particularly for impotence, frigidity, and premature ejaculation.
Air Date: 1972-07-24
- 22 The Surgery of Violence
Horizon explores the development and techniques of brain surgery from the 1950's to present-day in Britain and the USA.
Air Date: 1972-07-31
- 23 Hospital, 1922
Horizon reconstructs a day in the life of the old Charing Cross Hospital in Britain just fifty years ago.
Air Date: 1972-10-12
- 24 When Polar Bears Swam in the Thames
This episode of Horizon looks the how the ice age physically shaped the British landscape.
Air Date: 1972-10-19
- 25 The Making of the English Landscape
This episode of Horizon illustrates the ideas of Prof. W.G. Hoskins on the development of the English landscape from Iron Age times to the present.
Air Date: 1972-10-26
- 26 Shadows of Bliss
Horizon reports that High Energy Physics shows a pattern of thought that challenges the very roots of commonplace belief.
Air Date: 1972-11-02
- 27 Billion Marsh
This episode of Horizon is about the east coast marshes of America, called the "Wetlands" and the effects of urban development on the wildlife.
Air Date: 1972-11-09
- 28 Do You Sincerely Want a Long Life?
Horizon investigates the research that is going into the ageing process to find out its causes and possible prevention.
Air Date: 1972-11-16
- 29 The Making of a Natural History Film
This epidsode of Horizon reports on how a group of zoologists at Oxford Scientific Films in England makes films.
Air Date: 1972-11-23
- 30 Fire
Horizon documents fire prevention, and fire fighting.
Air Date: 1972-11-30
- 31 Alaskan Pipe Dream
This episode of Horizon centers on the exploitation of oil in Alaska, and the effects of it on the Eskimoes and the local wildlife.
Air Date: 1972-12-07
- 32 Their Life in Your Hands
Horizon reports on people suffering from kidney diseases and the current forms of treatment.
Air Date: 1972-12-21
- 33 Navigating Europe
Horizon documents how in Europe, they are using water canals for industrial transport, as an alternative to roads.
Air Date: 1972-12-28