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The Nature of Things

Season 18

Episodes

7020185
Episode 1
Dec 14, 1977
7020186
Episode 2
Dec 21, 1977
7020187
Episode 3
Dec 28, 1977
7020188
Episode 4
Jan 4, 1978
7020189
Episode 5
Jan 11, 1978
7020190
Episode 6
Jan 18, 1978
7020191
Episode 7
Jan 25, 1978
7020192
Episode 8
Feb 1, 1978
7020199
Episode 9
Feb 8, 1978
7020204
Episode 10
Feb 22, 1978
7020205
Episode 11
Mar 11, 1978