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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 15 Lost World Dinosaurs; Glaucoma; Research Vet; Enzyme Cleaners
- Season 15 Henrietta Marie; Scuba Kids; Fog; Best Of Inventors' Fair
- Season 15 Goldmine; Phases Of The Moon; Craig T. Nelson; Baby Tiger
- Season 15 Pet Food; The Family Pack; Wishbone; Not-A-Pet; Exotic Pets
- Season 15 White Water Rafting; Asthma; Meteorologist; Wild Horses
- Season 15 Gliders; Suction Cups; Novocaine; Leeches
- Season 15 Wilderness Training; River Kayaking; Glacier Climbing; Summit Bid
- Season 15 Glass Blowing; Smiles; Richard Dean Anderson; Enviro-Archaeology
- Season 15 Mammoth Dig; Greenhouse Effect; Neo-Natologist; Palmer Station
- Season 15 Kids On Mars; Wind Blow; Badlands; Chocolate
- Season 15 Zoo Vet; Car Engines; Can Opener; Walking Sticks
- Season 15 'Bot Or Not; NASA Robots; Mars VR; Robot Camps
- Season 15 Lightning Bolts; Proteins; Geese; Home Videos
Newton's Apple - Season 15 Episode 9 Mammoth Dig; Greenhouse Effect; Neo-Natologist; Palmer Station
8.00 30 minutes 
