Watched 0 of 14 episodes this season
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Oct 13, 2009
S47E01 - Do I Drink Too Much?
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Oct 20, 2009
S47E02 - The Secret You
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Oct 27, 2009
S47E03 - Fix Me
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Nov 3, 2009
S47E04 - Who's Afraid of a Big Black Hole?
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Nov 10, 2009
S47E05 - Why Do We Talk?
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Nov 17, 2009
S47E06 - How Long is a Piece of String?
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Jan 6, 2010
S47E07 - The Secret Life of the Dog
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Jan 13, 2010
S47E08 - Why Do Viruses Kill?
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Jan 20, 2010
S47E09 - Pill Poppers
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Feb 3, 2010
S47E10 - Don't Grow Old
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Feb 10, 2010
S47E11 - To Infinity and Beyond
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Feb 17, 2010
S47E12 - What Makes a Genius?
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Mar 2, 2010
S47E13 - Did Cooking Make Us Human?
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Mar 9, 2010
S47E14 - Is Everything We Know About the Universe Wrong?