- 1 The Missing Link
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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
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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?
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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
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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
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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?
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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
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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
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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
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Horizon looks at the life of whales and dolphins, and how they interact with man.
Air Date: 1972-03-06
- 10 What is Race?
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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
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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
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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
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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
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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
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Horizon presents a study of Thomas Alva Edison and his achievements as an inventor.
Air Date: 1972-05-01
- 16 Rail Crash
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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?
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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
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Horizon reports on modern research in the prevention of tooth decay.
Air Date: 1972-06-12
- 19 The Way We Move
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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
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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
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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
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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
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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
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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
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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
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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
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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?
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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
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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
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Horizon documents fire prevention, and fire fighting.
Air Date: 1972-11-30
- 31 Alaskan Pipe Dream
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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
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Horizon reports on people suffering from kidney diseases and the current forms of treatment.
Air Date: 1972-12-21
- 33 Navigating Europe
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Horizon documents how in Europe, they are using water canals for industrial transport, as an alternative to roads.
Air Date: 1972-12-28