The fourth season of the American animated comedy series Family Guy marked the show's return after a three-year hiatus. Due to low ratings, Fox cancelled the series after the conclusion of its third season in 2002. Increasing DVD sales and the popularity of its reruns on the Adult Swim network convinced Fox to revive the program, the first time a TV series was brought back on the basis of its DVD sales. The season, consisting of thirty episodes, premiered on May 1, 2005, and ran until May 21, 2006. The season's final three episodes, edited for content in broadcast form, were originally produced as a single standalone film called Stewie Griffin: The Untold Story, which was released on DVD on September 27, 2005. Critical reception for the season was mostly positive. Two episodes from season four were nominated for the Primetime Emmy Award for Outstanding Animated Program. (Full list...)