America's Ballroom Challenge (7 p.m., Ch. 7): The champions of all four styles face off in the season finale.

American Idol (7 p.m., Ch. 13): The 10 female finalists perform.

NBA (7 p.m., Ch. 14): Pistons at Jazz

Men in Trees (9 p.m., Ch. 4): The show moves to yet another new time slot and, in this new episodes, Marin gets an unexpected visitor.

Law & Order (9 p.m., Ch. 5): A drunken teen is murdered.