Let the games begin

If Mariah Carey and Nicki Minaj truly despise each other, it’s going to start getting harder to hide. “American Idol” (7 p.m., KMSP, Ch. 9) finally goes live, which makes it almost impossible to edit out any temper tantrums, walkouts or diva moments. Russ Meyer couldn’t have come up with a better scenario, with 10 males competing tonight, and 10 females going at it Wednesday. Results will air Thursday.

Hoo-hah!

LL Cool J got his moment in the sun hosting the Grammys last month. Now it’s his co-star’s turn to take a bow. Chris O’Donnell has directed his first episode of “NCIS: LA” (8 p.m., WCCO, Ch. 4), which means there’s a chance he’ll convince his former “Scent of a Woman” co-star Al Pacino to make a special appearance as a corpse.

What is art?

CNBC gets into the reality-series business with “Treasure Detectives” (8 p.m., CNBC), in which art detective Curtis Dowling tries to figure out if clients are victims of hoaxes. In the premiere, a collector tries to find out if he has a real Roy Lichtenstein print that he can trade in for a face-lift. Gee, I didn’t know Bruce Jenner collected art.