Season
- Season 1 1983-10-15
- Season 2 1984-10-13
- Season 3 1985-10-12
- Season 4 1986-10-11
- Season 5 1987-10-10
- Season 6 1988-10-15
- Season 7 1989-10-14
- Season 8 1990-10-13
- Season 9 1991-10-12
- Season 10 1992-10-10
- Season 11 1993-10-16
- Season 12 1994-10-15
- Season 13 1995-10-14
- Season 14 1996-10-12
- Season 15 1997-10-11
Season 15 Episode
- Season 4 Flight Trainers; Snake Bite; Hedgehoh Chat; Cold Remedies
- Season 4 Caves; Lasers; Skin Wrinkle Chat; Whale Birth
- Season 4 Hypothermia; Moon; Voice Change Chat; Yak
- Season 4 Sponges; Bed of Nails; Probability; Pelicans
- Season 4 Bees; Blood Pressure; Bruises Chat; Hiccups
- Season 4 Telescopes; Food Myths; Manatee
- Season 4 Fossil Dig; Mirrors; Frostbite Chat; Elephants
- Season 4 Wind Blow; Baldness; Soda Pop Fizz Chat; Cranes
- Season 4 Alcohol; Helium Balloons; Backache Chat; Roller Coaster; Snow Monkeys
- Season 4 Diabetes; Frozen Food; Flat Feet Chat; Battery Inventions; Alligators
- Season 4 Immune System; Skiing; Blimp; Beaver
- Season 4 Pterodactyl; Rube Goldberg; Black Box Chat; Quickies
- Season 4 Baseball Bats; Polarized Light; Dreams Chat; Inventors Fair; Falcon
Newton's Apple - Season 4 Episode 1 Flight Trainers; Snake Bite; Hedgehoh Chat; Cold Remedies
8.00 30 minutes 
