March 9, 2006
Episode 1 of Season 4 premiered on March 9, 2006
April 13, 2006
Episode 2 of Season 4 premiered on April 13, 2006
October 19, 2006
Episode 3 of Season 4 premiered on October 19, 2006
January 22, 2007
Episode 4 of Season 4 premiered on January 22, 2007
April 12, 2007
Episode 5 of Season 4 premiered on April 12, 2007
November 1, 2007
Episode 6 of Season 4 premiered on November 1, 2007