| 1970 | Horizon Season 1970 Episode 37 – The Gargantuan Triumph of Science | | 0 | 10 years |
| Horizon Season 1970 Episode 36 – The Man who Talks to Frogs | | 0 | 10 years |
| Horizon Season 1970 Episode 35 – The City that Waits to Die | | 0 | 10 years |
| Horizon Season 1970 Episode 34 – Square Pegs | | 0 | 10 years |
| Horizon Season 1970 Episode 33 – Mind the Machine | | 0 | 10 years |
| Horizon Season 1970 Episode 32 – Tanks | | 0 | 10 years |
| Horizon Season 1970 Episode 31 – The Savage Mind | | 0 | 10 years |
| Horizon Season 1970 Episode 30 – The Insect War | | 0 | 10 years |
| Horizon Season 1970 Episode 29 – Million Ton Tanker | | 0 | 10 years |
| Horizon Season 1970 Episode 28 – Something for Our Children | | 0 | 10 years |
| Horizon Season 1970 Episode 27 – Child for a Lifetime | | 0 | 10 years |
| Horizon Season 1970 Episode 26 – All Creatures Great and Small | | 0 | 10 years |
| Horizon Season 1970 Episode 25 – Water, Water | | 0 | 10 years |
| Horizon Season 1970 Episode 24 – Virus | | 0 | 10 years |
| Horizon Season 1970 Episode 23 – Noah’s Ark in Kensington | | 0 | 10 years |
| Horizon Season 1970 Episode 22 – Crown of Thorns | | 0 | 10 years |
| Horizon Season 1970 Episode 21 – Don’t Get Sick in America | | 0 | 10 years |
| Horizon Season 1970 Episode 20 – The Manhunters | | 0 | 10 years |
| Horizon Season 1970 Episode 19 – A Measure of Uncertainty | | 0 | 10 years |
| Horizon Season 1970 Episode 18 – Wolves and Wolfmen | | 0 | 10 years |
| Horizon Season 1970 Episode 17 – Only Skin Deep | | 0 | 10 years |
| Horizon Season 1970 Episode 16 – One Man’s Meat | | 0 | 10 years |
| Horizon Season 1970 Episode 15 – The Fretful Elements | | 0 | 10 years |
| Horizon Season 1970 Episode 14 – A Case of Priority | | 0 | 10 years |
| Horizon Season 1970 Episode 13 – The Drifting of the Continents | | 0 | 10 years |
| Horizon Season 1970 Episode 12 – In the Beginning was the Word | | 0 | 10 years |
| Horizon Season 1970 Episode 11 – The World Outside | | 0 | 10 years |
| Horizon Season 1970 Episode 10 – Let the Therapy Fit the Crime | | 0 | 10 years |
| Horizon Season 1970 Episode 9 – After the Iron Age | | 0 | 10 years |
| Horizon Season 1970 Episode 8 – The Expert Witness | | 0 | 10 years |
| Horizon Season 1970 Episode 7 – A Much Wanted Child | | 0 | 10 years |
| Horizon Season 1970 Episode 6 – Whose Coast? | | 0 | 10 years |
| Horizon Season 1970 Episode 5 – Sex and Sexuality | | 0 | 10 years |
| Horizon Season 1970 Episode 4 – A Disease of Our Time – Heart Attacks | | 0 | 10 years |
| Horizon Season 1970 Episode 3 – A Disease of Our Time – Stress | | 0 | 10 years |
| Horizon Season 1970 Episode 2 – Henry Royce, Mechanic | | 0 | 10 years |
| Horizon Season 1970 Episode 1 – Just Another World | | 0 | 10 years |
