- 1
Wildlife - The Last Great Battle
In this episode, Horizon looks a the efforts of zoos to save animal species from extinction by breeding enough to ensure their survival in captivity
- 2
Great Ormond Street
In this episode, Horizon looks at the renowned British hospital for children, Great Ormond Street, and the Institute of Child Health.
- 3
A Bulldozer Through Heaven
Horizon explores the island of New Guinea and its cultural changes going on there.
- 4
Rumors of War
This episode of Horizon looks at the growing arsenal of nuclear weapons over the last 25 years and the effects it has on the arms race.
- 5
I'm Dependent - You're Addicted (I)
The first of a two-programme investigation in which Horizon and Man Alive have combined forces. This episode investigates the facts about drug abuse and experimental work undertaken in this area.
- 6
Kuru - To Tremble with Fear
Kuru is a unique disease of the people of New Guinea. Horizon goes with Prof. E. J. Field to find out why.
- 7
Due to a Lack of Interest, Tomorrow Has Been Canceled
Horizon interviews ecologists that claim that man is irrevocably destroying its habitat.
- 8
What Kind of Doctor?
Horizon investigates medical student training at the St. Thomas hospital in London, England.
- 9
A Nice Sort of Accident to Have
Horizon explores the causes, and looks for way to prevent car accidents
- 10
The Wood
This report by Horizon looks at the long term ecological study of the forest at Wytham Wood, Oxon, in England.
- 11
The Measure of Man
In 1971, Horizon reviews the life and work of Prof. Hans Eysnck, the most controversial psychologists of the time.
- 12
Three Score Years and Then?
This report by Horizon explores care for the aged, for both medical and welfare services in Britain.
- 13
Darwin's Bulldog
Horizon reports on the famous protagonist of "The Origin of Species," Thomas Henry Huxley.
- 14
The Secret
This episode of Horizon examines how cells organize to become complex organs, and bodies.
- 15
What Every Girl Should Know
At the moment, legal abortions in the UK are being performed at the rate of over 90,000 a year and it is considered that the number is likely to rise. But why are so many people not prepared to use contraceptives? Are the contraceptives themselves at fault or is it part of a deep-rooted attitude to sex? A drug is now being tested which makes it possible for a woman to procure her own abortion in the first few weeks of pregnancy.
- 16
Tastes of Foods to Come
Horizon reports on food technology now experimenting with meat substitutes.
- 17
Looking for a Happy Landing
Within 20 years vertical take-off airliners could be hovering over Hampstead and Dulwich before landing, one a minute, day and night, at a Thames-side V-port. Horizon looks at what could be one of the great environmental debates of the century to have, or not to have, aircraft flying in and out of city centres.
- 18
A Case of Depression
Horizon investigates how to treat depressive illneses.
- 19
The Total War Machine
This episode of Horizon reports on the development of the aircraft bomber throughout periods of war.
- 20
The Dinosaur Hunters
Horizon explores the field of palaeontology, the study of dinosaurs.
- 21
Your Country Needs You?
This episode of Horizon looks at Britain's civil defense program, and to see if it is adequate in the event of a nuclear war.
- 22
Rheumatism
Horizon investigates rheumatism, and looks at why this disease is under-researched.
- 23
If at First You Don't Succeed... You Don't Succeed
Can new born babies solve complex problems? Horizon works with psychologists to see how they measure this capacity.
- 24
One Liverpool or Two?
Do city planners in Liverpool have unrealistic expectations? Horizon looks into the development and planning process of Liverpool, England.
- 25
Rutherford / The Cavendish Today
This is a two part episode of Horizon. First, Horizon looks at the life of centenary Ernest Rutherford, followed by a report of the Cavendish Labratory in Cambridge, England.
- 26
The Fierce People
Horizon explores a primitive tribe of Yanomamo Indians living in southern Venezula.
- 27
The Men Who Painted Caves
This episode of Horizon looks in the ancient cave paintings found in France.
- 28
The Crab Nebula
This episode of Horizon reports on how the Crab Nebula was discovered, and continuing observation of the space encounter.
- 29
Can Venice Survive?
Horizon reports on the continuing problem of the city of Venice, Italy sinking into the sea.
- 30
Willingly to School?
This report by Horizon is about Prof. Hean Piaget and her child center education theory.
- 31
The Periscope War
Horizon presents the history of the submarines, from pre-World War I to today's nuclear powered submarines.
- 32
Patently Absurd
This episode of Horizon investigates strange new inventions.
- 33
The Life That Lives on Man
- 34
Sex Can Be a Problem
- 35
The Surgery of Violence