Credit: FOX

AIR DATE: SUNDAY 2/21

Family Guy's spinoff may be one of this season’s top-rated new shows, but the quality isn't quite there yet. Tonight, Ashley Tisdale voices a snooty teen who taunts Cleveland's daughter. (Kristen Wiig pipes in as the snob's mom.) If that tale sounds tired, it is, and the rest of the gags are mostly tasteless (a pediatric AIDS joke? Really?). Though the guests entertain, Cleveland needs to focus on honing its main characters. (Fox, 8:30 P.M.)

-- JOHN GRIFFITHS