 Since its debut , Buena Vista Home Entertainment has released the first eight seasons on DVD to regions 1 , 2 , and 4 . The first season 's DVD , released on February 14 , 2006 , features an alternate title sequence , bloopers , behind @-@ the @-@ scenes footage , audio commentaries , and an extended edition of the pilot episode . Season two 's DVD , released on September 12 , 2006 , which includes extended episodes , an interview with Wilson , deleted scenes , a set tour , a " Q & A " with the cast , and a segment on the creating of special effects . The DVD for the third season was released on September 11 , 2007 , with bonus features including extended episodes , an interview with star Dempsey , audio commentaries , and bloopers . 
