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Episodios
1. Living History
6 Jan 1991
3. Inaugural Special
58 min26 Oct 2017
5. National Special
58 min26 Oct 2017
30. Trees
56 min29 Apr 2016
41. Coachella Music Festival
59 min7 May 2009
42. Desert Adventures
54 min7 Apr 2009
43. John Muir Special
56 min24 Feb 2017
44. Farallon Island
59 min8 Nov 2009
45. Hearst Ranch
59 min7 Sep 2009
46. In-N-Out Burger
59 min31 May 2010
47. Mount Wilson
59 min8 Jun 2010
48. Kaiser Steel
56 min25 Mar 2012
49. B-2 Bomber Update
1h12 Aug 2012