4 - 1Rivers & Streams Nov. 03, 1995- 4 - 2Nutrition Nov. 10, 1995
- 4 - 3Marine Mammals Nov. 17, 1995
- 4 - 4Earthquakes Nov. 24, 1995
- 4 - 5NTV Top 11 Video Countdown Dec. 01, 1995
- 4 - 6Spiders Jan. 05, 1996
- 4 - 7Pollution Solutions Jan. 12, 1996
- 4 - 8Probability Jan. 19, 1996
- 4 - 9Pseudoscience Jan. 26, 1996
- 4 - 10Flowers Jan. 27, 1996
- 4 - 11Archaeology Jan. 28, 1996
- 4 - 12Deserts Jan. 29, 1996
- 4 - 13Amphibians Jan. 30, 1996
- 4 - 14Volcanoes Jan. 31, 1996
- 4 - 15Invertebrates Feb. 07, 1996
- 4 - 16Heart Feb. 14, 1996
- 4 - 17Inventions Feb. 21, 1996
- 4 - 18Computers Apr. 25, 1996
- 4 - 19Fossils Sep. 05, 1997
- 4 - 20Time Sep. 12, 1997
