Columns: DVD Name | # of Ep | Region 1 | Region 2 | Region 4
Season One | 10 | July 11, 2006 | September 3, 2007 | July 18, 2007 | Season Two | 12 | July 24, 2007 | January 7, 2008 | May 28, 2008 | Season Three | 15 | June 3, 2008 | May 26, 2008 | July 8, 2009 | Season Four | 13 | June 2, 2009 | November, 2009 | March 17, 2010 | Season Five | 13 | January 19, 2010 | August 22, 2010 | November 24, 2010 | Season Six | 13 | February 22, 2011 | April 9, 2012 | December 16, 2011 | Season Seven | 13 | February 21, 2012 | TBA | August 8, 2013