January 5, 1970 9:00 pm
This episode of Horizon centers on the study of the moon rock samples brought back to the earth by the Apollo 11 flight to the moon.
January 12, 1970 9:00 pm
Horizon investigates the history of the life and work of Sir Henry Royce, co-founder of the firm Rolls Royce Royce.
January 19, 1970 9:00 pm
This is the first part of a two-part episode on diseases afflicting people today. Horizon looks at the issue of stress on the body.
January 26, 1970 9:00 pm
This is the second part of a two-part episode on diseases afflicting people today. Horizon looks at the causes of coronary heart disease and modern techniques of treatment and cure.
February 2, 1970 9:00 pm
Horizon exams the current scientific research into human sexual behavior.
February 16, 1970 9:00 pm
In this episode, Horizon reports on how much of the sea coast around Britain is becoming polluted.
February 23, 1970 9:00 pm
This episode deals with the problems of infertility and showing the investigations being carried out.
March 2, 1970 9:00 pm
Sir Bernard Spilsbury, a forensic pathologist, talks about the role of the scientific witness in the criminal courts.
March 9, 1970 9:00 pm
A look at some of the work carried out in Britain into the development of new materials for industry.
March 16, 1970 9:00 pm
This episode of Horizon looks at the question of the treatment of criminals in Britain.
March 23, 1970 9:00 pm
Horizon reports on the Mental Health Service in Britain.
March 30, 1970 9:00 pm
This episode surrounds the two channels of human communication - verbal and non-verbal.
April 13, 1970 9:00 pm
A Horizon investigation into the research done in Britain and the USA to support the 'Continental Drift' theory.
April 20, 1970 9:00 pm
This episode of Horizon looks at the National Health Service of Britain and the enormous demands that are imposed on it.
April 27, 1970 9:00 pm
This report by Horizon looks into meteorological research in Britain and America.
May 11, 1970 9:00 pm
An investigation by Horizon reveals information about the use of artificial additives and preservatives in the manufacture of modern processed foods.
July 6, 1970 9:00 pm
On this episode of Horizon, the science behind the cosmetic industry and the social and psychological importance of beauty and fragrance is revealed.
July 13, 1970 9:00 pm
This a a report by Horizon on the research in the USA and Canada into the habits of the wolf in its natural surroundings and in captivity.
August 10, 1970 9:00 pm
Horizon explores the use and role of statistics in modern society and how they are needed for planning.
August 17, 1970 9:00 pm
Horizon reveals new evidence found by archaeologists that have now traced our origins back to the extinct ape man of Africa.
August 24, 1970 9:00 pm
In this episode, Horizon reports on how the TV series "Man and Science Today" compares the British National Health System with the private health system in the USA.
August 31, 1970 9:00 pm
The population explosion of the Crown of Thorns starfish is investigated by Horizon.
September 7, 1970 9:00 pm
Horizon brings you the history and modern day functions of the Natural History museum in Kensington, Britain.
September 14, 1970 9:00 pm
This is an episode on problems dealing with viral diseases such as measles.
September 21, 1970 9:00 pm
Horizon looks at the work of scientists as they unravel the problems of providing us with water.
September 28, 1970 9:00 pm
In this story, Horizon investigates the issue of controversial animal experiments between anti-vivisectionists and scientists.
October 5, 1970 9:00 pm
Horizon reports on the future of 30,000 children in Britain that are mentally retarded.
October 12, 1970 9:00 pm
Horizon reports on the work of the British Nature Conservancy and how scientists are trying to find out about nature.
November 2, 1970 9:00 pm
This episode of Horizon reports on the revolution in the size of oil tankers showing present and future planned methods of construction.
November 9, 1970 9:00 pm
Horizon looks at problems caused by the rapid reproduction rate of insects and their increasing resistance to pesticides.
November 16, 1970 9:00 pm
Horizon reports on Professor Claude Levi-Strauss who has been studying and analyzing the so-called primitive man for more than 30 years.
November 23, 1970 9:00 pm
This episode of Horizon investigates the history of tanks in the last fifty years and the dominant role they have played in land warfare.
November 30, 1970 9:00 pm
In this story, Horizon investigates the artificial intelligence of computers by watching a chess game.
December 7, 1970 9:00 pm
Horizon examines some of the techniques used by the boom industry of Management Selection.
December 14, 1970 9:00 pm
Horizon investigates the work of geologists and seismologists trying to predict the date of the next great earthquake in San Francisco, California.
December 21, 1970 9:00 pm
Horizon reports on some of the pure scientific research work carried out at the Smithsonian Tropical Research institute.
December 28, 1970 9:00 pm
This episode by Horizon is a dramatized reconstruction from original transcripts of the inquiry into the Tay Bridge disaster.