In the case of a TV show, low ratings may cause a studio to cancel the show, possibly after having filmed an entire season and aired some episodes. If the show has a considerable fanbase, the studio may release unaired episodes on video to recover losses. "" and "Firefly" are examples of canceled shows which were successful cult hits on DVD. Occasionally outstanding DVD sales may revive a canceled show, as in the case of "Family Guy".Originally canceled in 2004,the series was revived in 2005 due partly to its excellent DVD sales.