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The Nature of Things

Season 12

Episodes

6323459
Episode 1
Oct 4, 1971
6323460
Episode 2
Oct 11, 1971
6323468
Episode 3
Oct 25, 1971
6323464
Episode 4
Dec 13, 1971
6323479
Episode 5
Jan 3, 1972
6323480
Episode 6
Jan 10, 1972
6323481
Episode 7
Jan 17, 1972
6323482
Episode 8
Jan 24, 1972
6323484
Episode 9
Jan 31, 1972
6323487
Episode 10
May 15, 1972