Price Is Right $1 Million Challenge (7 p.m., Ch. 2): Drew Carey hosts.

American Idol (7 p.m., Ch. 13): A winner is declared — will it be David Archuleta or David Cook? (Two-hour season finale)

Criminal Minds (8 p.m., Ch. 2): People are being killed at random. (Season finale)

CSI: NY (9 p.m., Ch. 2): A gunman takes hostages. (Season finale)

Boston Legal (9 p.m., Ch. 4): Alan and Denny are on opposite sides of a case. (Season finale)

Law & Order (9 p.m., Ch. 5): Jack McCoy's job is threatened.