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| Aflevering | Eerste uitzending |
|---|---|
| S12E01 - The Garden of Inheritance | 08/01/1985 |
| S12E02 - Edgerton and His Incredible Seeing Machines | 15/01/1985 |
| S12E03 - Global Village | 22/01/1985 |
| S12E04 - Conquest of the Parasites | 29/01/1985 |
| S12E05 - In the Land of the Polar Bears | 05/02/1985 |
| S12E06 - AIDS: Chapter One | 12/02/1985 |
| S12E07 - The Shape of Things | 19/02/1985 |
| S12E08 - Baby Talk | 26/02/1985 |
| S12E09 - The Mathematical Mystery Tour | 05/03/1985 |
| S12E10 - Child's Play: Prodigies and Possibilities | 12/03/1985 |
| S12E11 - Monarch of the Mountains | 19/03/1985 |
| S12E12 - The National Science Test II | 08/10/1985 |
| S12E13 - Seeds of Tomorrow | 15/10/1985 |
| S12E14 - What Einstein Never Knew | 22/10/1985 |
| S12E15 - The Robot Revolution? | 29/10/1985 |
| S12E16 - The Magic of Special Effects | 05/11/1985 |
| S12E17 - Child Survival: The Silent Emergency | 12/11/1985 |
| S12E18 - Tornado! | 19/11/1985 |
| S12E19 - The Genetic Gamble | 26/11/1985 |
| S12E20 - Animal Architects | 03/12/1985 |
| S12E21 - The Plane that Changed the World | 17/12/1985 |