The Nature of Things
Season 46
Episodes
Episode 1
Aug 31, 2005
Episode 2
Sep 14, 2005
Episode 3
Oct 19, 2005
Episode 4
Oct 26, 2005
Episode 5
Nov 2, 2005
Episode 6
Nov 9, 2005
Episode 7
Nov 16, 2005
Episode 8
Jun 18, 2006
Episode 9
Jun 25, 2006
Episode 10
Jul 2, 2006
Episode 11
Jul 9, 2006
Episode 12
Jul 16, 2006
Episode 13
Jul 23, 2006
Episode 14
Jul 30, 2006
Episode 15
Aug 6, 2006
Episode 16
Aug 13, 2006
Episode 17
Dec 6, 2006
Episode 18
Jun 10, 2007
Episode 19
Jun 17, 2007
Episode 20
Jun 24, 2007
Episode 21
Jul 22, 2007
Episode 22
Jul 29, 2007
Episode 23
Aug 12, 2007
Episode 24
Aug 19, 2007
Episode 25
Sep 9, 2007
Episode 26
Sep 16, 2007
Episode 27
Sep 23, 2007
Episode 28
Sep 30, 2007
Episode 29
Oct 7, 2007