Horizon — Season 2009

E01 Why Are Thin People Not Fat? 26 Jan 2009 E02 Cannabis: The Evil Weed? 03 Feb 2009 E03 Why Do We Dream? 10 Feb 2009 E04 Can We Make a Star on Earth? 17 Feb 2009 E05 The Secret Life of Your Bodyclock 24 Feb 2009 E06 What's the Problem with Nudity? 03 Mar 2009 E07 How to Survive a Disaster 10 Mar 2009 E08 Who Do You Want Your Child to Be? 17 Mar 2009 E09 Why Can't We Predict Earthquakes? 24 Mar 2009 E10 Alan and Marcus Go Forth and Multiply 31 Mar 2009 E11 How Violent Are You? 12 May 2009 E12 Do I Drink Too Much? 13 Oct 2009 E13 The Secret You 20 Oct 2009 E14 Fix Me 27 Oct 2009 E15 Who's Afraid of a Big Black Hole? 03 Nov 2009 E16 Why Do We Talk? 10 Nov 2009 E17 How Long is a Piece of String? 17 Nov 2009 E18 How Many People Can Live on Planet Earth? 09 Dec 2009