Big Brother (7 p.m., Ch. 2): The voyeuristic summer series continues . . .
Who Wants to Be a Millionaire? (7 p.m., Ch. 4): Regis Philbin hosts.
Buffy the Vampire Slayer (7 p.m., Ch. 30): Buffy heads off to college. (Repeat)
Sammy (7:30 p.m., Ch. 5): If you're wondering why NBC ordered 13 episodes of this animated series based on David Spade's life — it was a contractual thing. If you're wondering why the show has been delayed for months — it's awful. Spade provides the voices of both James, a successful Hollywood star (more successful than Spade) and the father who abandoned him, Sammy. What he doesn't provide is anything approaching humor.
Dharma & Greg (8 p.m., Ch. 4): Greg's lack of spontaneity turns Dharma off. (Repeat)
Frasier (8 p.m., Ch. 5): Niles' girlfriend goads him into opposing Frasier in an election for president of their wine club. (Repeat)
American High (8 and 8:30 p.m., Ch. 13): Fox repeats last week's two premiere episodes.
The Real World (8 p.m., MTV): David takes over as producer of the cast's show, but there's dissension in the ranks.
Just Shoot Me (8:30 p.m., Ch. 5): Nina realizes she is part of Elliott's past. (Repeat)
Angel (8 p.m., Ch. 30): Angel gets involved with a group of street kids who do battle with vampires — and the group's leader (J. August Richards) will be a regular on the show this coming season. (Repeat)
The West Wing (9 p.m., Ch. 5): The staff tries to deal tactfully with the first lady; the president's daughter receives hate mail. (Repeat)