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