E1 - The Missing Link

Aired: January 03, 1972

In this episode of Horizon, you find out how feasible it is to build a 35 mile long tunnel between Britain and France.

E2 - Navajo - The Last Red Indians

Aired: January 10, 1972

Horizon explores the American Navajo indian tribe of New Mexico, in the United States.

E3 - How Much Do You Smell?

Aired: January 17, 1972

Why do humans have such a poor sense of smell as compared to animals? Horizon investigates why.

E4 - The Parasite of Paradise

Aired: January 31, 1972

This story by Horizon reports on Malaria in the country of Gambia, in West Africa.

E5 - The Day it Rained Periwinkles

Aired: February 07, 1972

Horizon investigates reports of strange phenomena and about what the scientific theory is about these phenomena.

E6 - Are You Doing This for Me Doctor, or Am I Doing It for You?

Aired: February 14, 1972

Horizon explores if a doctor's treatment of the patient is always in the best interest of the patient.

E7 - How They Sold Doomsday

Aired: February 21, 1972

In this episode, Horizon looks the the ecological movement, and the resistance against the movement in Britain, and the USA.

E8 - For Love or Money?

Aired: 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.

E9 - Whales, Dolphins and Men

Aired: March 06, 1972

Horizon looks at the life of whales and dolphins, and how they interact with man.

E10 - What Is Race?

Aired: March 13, 1972

Horizon investigates the various conceptions of "race" that have arisen since the 17th century.

E11 - The Man-Made Lakes in Africa

Aired: March 20, 1972

Horizon investigates the use of hydroelectric power in Africa, at Lake Kariba, Lake Volta, and Lake Nasser.

E12 - Survival in the Sahara

Aired: March 27, 1972

This episode of Horizon follows the expedition of two German naturalists exploring the Northwestern desert of the Sahara in Africa.

E13 - Mind Over Body

Aired: April 10, 1972

This story by Horizon is about American research into techniques for controlling bodily functions with the mind.

E14 - Out of Volcanoes

Aired: April 17, 1972

In this report, Horizon looks at the various aspects of volcanoes and explaining the views of some vulcanologists.

E15 - The Wizard Who Spat on the Floor

Aired: May 01, 1972

Horizon presents a study of Thomas Alva Edison and his achievements as an inventor.

E16 - Rail Crash

Aired: May 08, 1972

Horizon reviews the history of train accidents and the new safety precautions to prevent them.

E17 - Do You Dig National Parks?

Aired: May 22, 1972

Horizon investigates the threat to the Snowdonia National Park in Britain, from mining companies.

E18 - Sorry I Opened My Mouth

Aired: June 12, 1972

Horizon reports on modern research in the prevention of tooth decay.

E19 - The Way We Move

Aired: July 03, 1972

How do muscles contract and how are they are controlled from the brain through nerve fibers are the subjects of this Horizon episode.

E20 - The Life that Lives on Man

Aired: July 10, 1972

This episode of Horizon explores bacteria and other creatures that live on our skin and in our hair.

E21 - Sex Can Be a Problem

Aired: July 24, 1972

In this episode by Horizon, we take a look at sexual problems, particularly for impotence, frigidity, and premature ejaculation.

E22 - The Surgery of Violence

Aired: July 31, 1972

Horizon explores the development and techniques of brain surgery from the 1950's to present-day in Britain and the USA.

E23 - Hospital, 1922

Aired: October 12, 1972

Horizon reconstructs a day in the life of the old Charing Cross Hospital in Britain just fifty years ago.

E24 - When Polar Bears Swam in the Thames

Aired: October 19, 1972

This episode of Horizon looks the how the ice age physically shaped the British landscape.

E25 - The Making of the English Landscape

Aired: 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.

E26 - Shadows of Bliss

Aired: November 02, 1972

Horizon reports that High Energy Physics shows a pattern of thought that challenges the very roots of commonplace belief.

E27 - The Billion-Dollar Marsh

Aired: November 09, 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.

E28 - Do You Sincerely Want a Long Life?

Aired: November 16, 1972

Horizon investigates the research that is going into the ageing process to find out its causes and possible prevention.

E29 - The Making of a Natural History Film

Aired: November 23, 1972

This epidsode of Horizon reports on how a group of zoologists at Oxford Scientific Films in England makes films.

E30 - Fire

Aired: November 30, 1972

Horizon documents fire prevention, and fire fighting.

E31 - Alaskan Pipe-Dream

Aired: December 07, 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.

E32 - Their Life in Your Hands

Aired: December 21, 1972

Horizon reports on people suffering from kidney diseases and the current forms of treatment.

E33 - Navigating Europe

Aired: December 28, 1972

Horizon documents how in Europe, they are using water canals for industrial transport, as an alternative to roads.