Do You See What I See? (S49E1)
8/8/2011
Seeing Stars (S49E2)
8/15/2011
The Nine Months That Made You (S49E3)
8/22/2011
The Core (S49E4)
8/31/2011
Are You Good or Evil? (S49E5)
9/7/2011
Fukushima: Is Nuclear Power Safe? (S49E6)
9/14/2011
Playing God (S49E7)
1/17/2012
The Truth About Exercise (S49E8)
2/28/2012
Solar Storms: The Threat to Planet Earth (S49E9)
3/6/2012
Out of Control? (S49E10)
3/13/2012
Global Weirding (S49E11)
3/27/2012
The Truth about Fat (S49E12)
3/20/2012
Defeating Cancer (S49E13)
4/10/2012
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