Simpsons -- a bit slow in places but a good episode. I liked Grandpa's list.
King of the Hill -- the highlight of the evening and a good wrap up for Dale's storyline. "Good son, wire tapping the wire tapper!"
Family Guy -- good episode. I really liked the cartoon subplot. My only real problem with this episode was the Meg vagina joke (seriously, what?) and the repeat of the Charlie and the Chocolate Factory gag. But really, handi-ducks and the kitchen gag more than made up for it.
American Dad -- Roger + self referential "meta" jokes = Pure Win
What a good Sunday lineup. Each show managed to turn out a new and entertaining episode.