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| Aflevering | Eerste uitzending |
|---|---|
| S16E01 - Hot Enough for You? | 17/01/1989 |
| S16E02 - The Last Journey of a Genius | 24/01/1989 |
| S16E03 - The Strange New Science of Chaos | 31/01/1989 |
| S16E04 - Back to Chernobyl | 14/02/1989 |
| S16E05 - God, Darwin and the Dinosaurs | 21/02/1989 |
| S16E06 - Adrift on the Gulf Stream | 28/02/1989 |
| S16E07 - Secrets of Easter Island (1) | 07/03/1989 |
| S16E08 - Legends of Easter Island (2) | 07/03/1989 |
| S16E09 - The World Is Full of Oil! | 21/03/1989 |
| S16E10 - Confronting the Killer Gene | 28/03/1989 |
| S16E11 - The Hidden City | 03/10/1989 |
| S16E12 - The Controversial Dr. Koop | 10/10/1989 |
| S16E13 - Design Wars! | 17/10/1989 |
| S16E14 - Echoes of War | 24/10/1989 |
| S16E15 - Decoding the Book of Life | 31/10/1989 |
| S16E16 - Hurricane! | 07/11/1989 |
| S16E17 - Will Venice Survive Its Rescue? | 14/11/1989 |
| S16E18 - What Is Music? | 21/11/1989 |
| S16E19 - Yellowstone's Burning Question | 05/12/1989 |
| S16E20 - The Schoolboys Who Cracked the Soviet Secret | 12/12/1989 |