Signal-To-Noise Uncovering Dark Skies - 2010 was released on:
USA: 9 December 2010
Uncovering Aliens - 2013 was released on: USA: 15 December 2013
Warfare in the Skies - 1914 was released on: USA: 4 August 1914
African Skies - 1991 was released on: USA: 11 October 1992
Bright Skies - 1920 was released on: USA: 4 April 1920
Clear Skies - 2008 SUSPENDED was released on: USA: 2008
Dark Skies - 1929 was released on: USA: 10 December 1929
Summer Skies - 1911 was released on: USA: 5 April 1911
Romance of the Skies - 1925 was released on: USA: 10 April 1925
Friendly Skies - 2008 SUSPENDED was released on: USA: 2008
Under Western Skies - 1921 was released on: USA: 1921
Silver Skies - 2012 was released on: USA: 14 June 2012 (internet)
Beneath Southern Skies - 1911 was released on: USA: 18 February 1911