Season 13 was the final season of King of the Hill. After the episode Lucky See, Monkey Do, epsiodes were shown in 720p high-definition. 20th Century Fox Television initially ordered 13 production episodes, but decided to keep the show in production for four additional episodes (DABE14–DABE17). However, the network only aired the last of those four episodes (13 total for that production season), and confirmed it would not air the remaining four unaired episodes (DABE13–DABE16) in prime time, opting instead for syndication. These episodes premiered between May 3 and May 6, 2010, on local stations and premiered on Cartoon Network's Adult Swim line-up between May 17 and May 20, 2010, followed by the series finale (DABE17, "To Sirloin With Love") on May 21, 2010.