1. Your Country Needs You
Aired: Jan 4, 1971In this episode, Horizon looks a the efforts of zoos to save animal species f...
2. Rheumatism
Aired: Jan 18, 1971In this episode, Horizon looks at the renowned British hospital for children,...
3. If at First You Don't Succeed... You Don't Succeed
Aired: Jan 25, 1971Horizon explores the island of New Guinea and its cultural changes going on t...
4. One Liverpool or Two?
Aired: Feb 1, 1971This episode of Horizon looks at the growing arsenal of nuclear weapons over ...
5. Rutherford, Cavendish
Aired: Feb 15, 1971The first of a two-programme investigation in which Horizon and Man Alive hav...
6. The Fierce People
Aired: Feb 22, 1971Kuru is a unique disease of the people of New Guinea. Horizon goes with Prof....
7. The Men Who Painted Caves
Aired: Mar 8, 1971Horizon interviews ecologists that claim that man is irrevocably destroying i...
8. The Crab Nebula
Aired: Mar 15, 1971Horizon investigates medical student training at the St. Thomas hospital in L...
9. Can Venice Survive?
Aired: Mar 22, 1971Horizon explores the causes, and looks for way to prevent car accidents
10. Willingly to School
Aired: Apr 5, 1971This report by Horizon looks at the long term ecological study of the forest ...
11. Periscope War
Aired: Apr 12, 1971In 1971, Horizon reviews the life and work of Prof. Hans Eysnck, the most con...
12. Patently Absurd
Aired: Apr 26, 1971This report by Horizon explores care for the aged, for both medical and welfa...
13. The Missing Link
Aired: May 3, 1971Horizon reports on the famous protagonist of "The Origin of Species," Thomas ...
14. Navajo: The Last Red Indians
Aired: May 10, 1971This episode of Horizon examines how cells organize to become complex organs,...
15. How Much Do You Smell?
Aired: May 17, 1971At the moment, legal abortions in the UK are being performed at the rate of o...
16. Parasite of Paradise
Aired: May 24, 1971Horizon reports on food technology now experimenting with meat substitutes.
17. The Day It Rained Periwinkles
Aired: May 31, 1971Within 20 years vertical take-off airliners could be hovering over Hampstead ...
18. Are You Doing This for Me Doctor?
Aired: Jun 7, 1971Horizon investigates how to treat depressive illneses.
19. How They Sold Doomsday
Aired: Jun 14, 1971This episode of Horizon reports on the development of the aircraft bomber thr...
20. For Love or Money?
Aired: Jun 21, 1971Horizon explores the field of palaeontology, the study of dinosaurs.
21. Whales, Dolphins and Men
Aired: Sep 27, 1971This episode of Horizon looks at Britain's civil defense program, and to see ...
22. What Is Race?
Aired: Oct 4, 1971Horizon investigates rheumatism, and looks at why this disease is under-resea...
23. Man Made Lakes of Africa
Aired: Oct 11, 1971Can new born babies solve complex problems? Horizon works with psychologists ...
24. Survival in the Sahara
Aired: Oct 18, 1971Do city planners in Liverpool have unrealistic expectations? Horizon looks in...
25. Mind Over Body
Aired: Oct 25, 1971This is a two part episode of Horizon. First, Horizon looks at the life of ce...
26. Out of Volcanoes
Aired: Nov 1, 1971Horizon explores a primitive tribe of Yanomamo Indians living in southern Ven...
27. The Wizard Who Spat on the Floor
Aired: Nov 15, 1971Documentary about Thomas Alva Edison, the American inventor, compiled from ra...
28. Rail Crash
Aired: Nov 22, 1971This episode of Horizon reports on how the Crab Nebula was discovered, and co...
29. Do You Dig National Parks?
Aired: Nov 29, 1971Horizon reports on the continuing problem of the city of Venice, Italy sinkin...
30. The Rat Man, Sigmund Freud
Aired: Dec 6, 1971An account of Dr. Sigmund Freud's famous case study of a young lawyer named E...
31. Sorry I Opened My Mouth
Aired: Dec 20, 1971Horizon presents the history of the submarines, from pre-World War I to today...
32. The Ways We Move
Aired: Dec 27, 1971This episode of Horizon investigates strange new inventions.
