The first six seasons were released on DVD by 20th Century Fox Home Entertainment from 2003 to 2006. The seventh season was originally planned to be released in late 2006, but, most likely due to poor sales of the DVDs, the release was cancelled. However, in 2014, Olive Films acquired the sub-license to release future seasons of the show, and seasons seven and eight were released on November 18, of that same year, with nine and ten released on April 7, 2015, eleven released on August 25, 2015, twelve released on September 22, 2015, and thirteen released (also Blu-ray) on October 20, 2015.