Season 9

1. Aerobic Exercise; Swimming/Weightlifting; Luge/Skating; Softball/Racewalking

1991-10-12 · 30m

2. Solar Cars; Steroids; The Amazing Kreskin; Foot Fall Asleep; Miniature Horses

1991-10-19 · 30m

3. Murder Mystery; Ted Nugent; Bats

1991-10-26 · 30m

4. Cancer Causes; Frisbees; Computer Virus

1991-11-02 · 30m

5. Sewers; Cancer Treatments; Dick Cavett; Porcupines

1991-11-09 · 30m

6. Mapping the Dig Site; Dating the Bones; Assembling Dinosaur

1991-11-16 · 30m

7. Domed Stadium; Photosynthesis; Polarized Sunglasses; Amusement Park

1991-11-23 · 30m

8. Tears; Slinky Physics; Barcodes; Aspirin; Camels

1991-11-30 · 30m

9. Soviet Space; Sky Blue; Inventors Fair; Llamas

1991-12-07 · 30m

10. Acid Rain; Highjump; Potholes; Goats

1991-12-14 · 30m

11. Medical Quackery; Microwave Ovens; Dollar Changer; Golden Eagles

1991-12-21 · 30m

12. Telecommunications; Solar Eclipse; Blimp; Bear Cubs

1991-12-28 · 30m

13. Hip Replacement; Airbags; Paper Cuts; Potbelly Pigs

1992-01-04 · 30m