Horizon Season 26 Episode release dates & where to watch

1. The Book of Man

Horizon looks again at the Human Genome Project which aims to decipher or sequence all genes.

2. The Poison that Waits

Horizon reports on the abnormally high incidence of and the early onset of diseases such as senile dementia and Parkinson's disease on the island of Guam in the Pacific. Scientists have now linked the diseases to a poison in the native cycad fruit.

3. Perils of the Deep

In this episode, Horizon presents evidence that even diving in relatively shallow waters can cause serious long term damage to the brain and spinal cord.

4. Smart Weapons

This documentary by Horizon demonstrates how smart Weapons use computers to destroy targets, that until now, were only able to be threatened by nuclear weapons.

5. Wasting the Alps

Horizon looks at the damaging effects of pollution and tourism on the Swiss Alps in Europe.

6. In the Last Resort

Horizon answers the question: What are the alternatives for the elderly in Britain who can't live at home, or in a rest home or nursing home, or part of a sheltered accommodation?

7. Gaze in Wonder

Horizon brings you an interview with Prof. Eric Laithwaite who presents an engineer's personal view of nature and how new inventions already exist in nature.

8. In My Lifetime?

In this episode, Horizon presents an investigation into the state of medical research in neurological disorders and the issues with its funding in Britain.

9. Concerto

This documentary by Horizon investigates new technology applied to music.

10. Black Schizophrenia

Horizon covers the story of the Nottingham psychiatrists who study the human race to see who is mostly likely to develop schizophrenia.

11. Trial in the Jungle

This Horizon report covers the Tasaday, a remote Philippine tribe apparently living in the stone age, who are now seen as a hoax. How did they do it?

12. Who Will Make Me Better?

Horizon explores three types of alternative medicine; homoeopathy, acupuncture, and diagnosing food allergies by testing your toes.

13. A Wonderful Life

Horizon presents a biography of the philosopher Ludwig Wittgenstein who lived from 1889 to 1951.

14. Why Buildings Make You Sick

This is a Horizon documentary about an investigation into the so-called "sick building syndrome" where occupants contract illnesses because of the environment within the building.

15. Jubilee

How valid have been Horizon's criticisms of scientific orthodoxy and to what effect have the programs had?

16. Crash

Horizon investigates how many of the tragedies on our roads in Britain could be avoided by the introduction of technical and legislative changes.

17. The New Sixth Sense

Horizon follows J. Hooper, a diabetic, as she explores various aspects of biosensor technology.

18. Clive Sinclair: The Anatomy of an Inventor

Horizon presents a profile of noted inventor Clive Sinclair with his family and colleagues reminiscing and analysing his successes and failures.

19. Newpin: A Lifetime

In this story, Horizon explores how the destructive patterns of child abuse and depression can be broken by concentrating on the mothers of young children.

20. Time of Darkness Finale

In this Horizon episode, we look at the effects on the climate from volcanic eruptions.