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Where To Watch The Nature of Things Season 20

  1. 1Flying Circus of PhysicsOctober 24, 1979
  2. 2Hypnosis / India's Sacred Cows / Ultra Sound ScannerOctober 31, 1979
  3. 3Parenthood / Puppets and SurgeryNovember 14, 1979
  4. 4ContactNovember 21, 1979
  5. 5Deep Diving MemoryNovember 28, 1979
  6. 6Arctic OilDecember 5, 1979
  7. 7Clinical TrialsDecember 12, 1979
  8. 8Left Brain, Right BrainDecember 19, 1979
  9. 9Dust Storms / Oysters / Science FairsDecember 26, 1979
  10. 10Memories from EdenJanuary 2, 1980
  11. 11Crocodile CityJanuary 9, 1980
  12. 12The LacandonsJanuary 23, 1980
  13. 13Paul Jacobs and the Nuclear GangFebruary 6, 1980
  14. 14Roger Tory Peterson; Portrait of a BirdwatcherFebruary 13, 1980
  15. 15GalileoFebruary 27, 1980
  16. 16The Chiricahuas / The Making of Violins / Seal PsychologyMarch 5, 1980