America's Next Top Model, 8 p.m., CW Clay Aiken and last season's winner McKey show up to make the girls feel better — probably by pointing out to the contestants that at least they won't be like this pair. Plus, the commercial shoot!
SEASON PREMIERE Mythbusters, 9 p.m., Discovery We quit paying attention about the time they did that bit about whether you stay drier if you run in the rain. Now two hours about movie car chases? Snore.
CSI: NY, 10 p.m., CBS Katharine McPhee shows up as Stella and begins to sense deja vu. Was the American Idol results show tonight or tomorrow?
SERIES PREMIERE The Unusuals, 10 p.m., ABC More screwed up cops. It's enough to make you afraid to call 911.