Horizon: Season 4 (1967)
This season started on January 17, 1967. The table lists episodes with recorded air dates up to September 28, 2026.
| Ep | Title and air date | My place |
|---|---|---|
| 1 | Sons of Cain · 60 min | |
| 2 | When Is a Body Dead? / How to Win Friends and Influence People · 60 min | |
| 3 | How Best to Make a Man / How Best to Make a Scientist · 60 min | |
| 4 | Dynamo - The Life of Michael Faraday · 60 min | |
| 5 | Migraine · 60 min | |
| 6 | How Safe Is Surgery? · 60 min | |
| 7 | Sleep and Dreams · 60 min | |
| 8 | The Shape of War to Come · 60 min | |
| 9 | Memory · 60 min | |
| 10 | Masters of the Desert · 60 min | |
| 11 | Cancer - The Search for the Virus · 60 min | |
| 12 | Cancer - The Smoker's Gamble · 60 min | |
| 13 | Science and the Supernatural · 60 min | |
| 14 | Hypnosis · 60 min | |
| 15 | The War of the Boffins · 60 min | |
| 17 | Aspects of Alcohol · 60 min | |
| 18 | Lords of the Sea · 60 min | |
| 19 | Will Art Last? · 60 min | |
| 20 | Air Safety: The Unknown Factor · 60 min | |
| 21 | The Life and Death of the Pine Processionary · 60 min | |
| 22 | Koestler on Creativity · 60 min | |
| 23 | The World of Ted Serios · 60 min | |
| 24 | Professor in Toyland · 60 min |
