Star Wars Episode IV-V The Unknown Discovery - 2005 was released on:
USA: 17 May 2005 (DVD premiere)
The Discovery - 2007 was released on: USA: 2007
The Discovery - 1913 was released on: USA: 5 March 1913
Discovery - 2005 was released on: USA: 25 September 2005
The Unknown - 2008 was released on: USA: December 2008
Edge of the Unknown - 2015 was released on: USA: 2015
Unknown - 1916 was released on: USA: 18 March 1916
The Unknown - 1913 I was released on: USA: 22 February 1913
Author Unknown - 2015 was released on: USA: 2015
The Unknown Eiffel - 1974 was released on: USA: 1974
Day of Discovery - 1968 was released on: USA: 5 May 1968
Nostrand's Discovery - 1916 was released on: USA: 3 August 1916
The Great Discovery - 1912 was released on: USA: 14 June 1912