FINALE WATCH: “The Biggest Loser” (NBC at 8) Status: Renewed for Season 12. Who has lost the most weight since the beginning of the season? It’s a crucial question as Season 11 comes to a close, and one person is awarded the $250,000 prize. But before that can happen, all the eliminated players return for a live reunion and the chance to also win some big money.

FINALE WATCH: “Dancing With the Stars” (ABC at 9) Status: Renewed for Season 13. Kirstie Alley. Chelsea Kane. Hines Ward. Someone’s going home with the hideous — er, coveted — mirror ball trophy on Tuesday, as the show wraps up with a two-hour results night. Plus, all the celebrities booted this season return to dance, and obviously the Black Eyed Peas appear (because, let’s face it, it would be strange if they didn’t show up for a TV performance).

FINALE WATCH: “Glee” (Fox at 9) Status: Renewed for Season 3. The New Directions get out of Ohio on the second season finale and head to New York City for the much-awaited nationals competition. And along the way, they indulge their tourist tendencies and check out sights including Times Square, Central Park and Broadway.

With the final results show Wednesday, “American Idol” (Fox at 8) gets things started a day early, as Scotty McCreery and Lauren Alaina battle it out for the Season 10 crown and try to impress Steven Tyler, J-Lo and Randy Jackson.

A man who loves graffiti gets to call the shots on decorating the family room on “Spouse vs. House” (TLC at 8), so it’s sure to be fun when his wife — who just wants a plain, comfortable living space — sees his ideas.

A year after Bradley Manning was arrested for allegedly giving classified documents to WikiLeaks, “Frontline” (MPT at 9, WETA at 10) features “WikiSecrets,” which looks at Manning, along with how the WikiLeaks controversy happened, and has comments from founder Julian Assange.

In a twist, Rosie helps a dad-to-be get ready for fatherhood on the first season finale of “Pregnant in Heels” (Bravo at 10), and she helps a mom with the nanny search.

“The Tonight Show With Jay Leno” (NBC at 11:35) has “Today” host Meredith Vieira, comedian Demetri Martin and musical guest Ben Harper.

Actor Ewan McGregor and new “CBS Evening News” anchor Scott Pelley visit “Late Show With David Letterman” (CBS at 11:35), along with country singer Brad Paisley.

Emily Yahr