16 - 1Hot Enough for You? Jan. 17, 1989- 16 - 2The Last Journey of a Genius Jan. 24, 1989
- 16 - 3The Strange New Science of Chaos Jan. 31, 1989
- 16 - 4Back to Chernobyl Feb. 14, 1989
- 16 - 5God, Darwin and the Dinosaurs Feb. 21, 1989
- 16 - 6Adrift on the Gulf Stream Feb. 28, 1989
- 16 - 7Secrets of Easter Island (1) Mar. 07, 1989
- 16 - 8Legends of Easter Island (2) Mar. 07, 1989
- 16 - 9The World Is Full of Oil! Mar. 21, 1989
- 16 - 10Confronting the Killer Gene Mar. 28, 1989
- 16 - 11The Hidden City Oct. 03, 1989
- 16 - 12The Controversial Dr. Koop Oct. 10, 1989
- 16 - 13Design Wars! Oct. 17, 1989
- 16 - 14Echoes of War Oct. 24, 1989
- 16 - 15Decoding the Book of Life Oct. 31, 1989
- 16 - 16Hurricane! Nov. 07, 1989
- 16 - 17Will Venice Survive Its Rescue? Nov. 14, 1989
- 16 - 18What Is Music? Nov. 21, 1989
- 16 - 19Yellowstone's Burning Question Dec. 05, 1989
- 16 - 20The Schoolboys Who Cracked the Soviet Secret Dec. 12, 1989
