TONIGHT: It's another strong 9 o'clock hour with the last regularly-scheduled episode of Lost going up against Neil Patrick Harris on Glee. The rest of the night rounds out with new episodes of American Idol and Dancing with the Stars.

8:00 PM

90210 The second season closes with Teddy taking revenge against Spence. Ryan O'Neal guest stars. (CW)
American Idol The last three compete. (FOX)
Dancing with the Stars Ninth round results are in and Miley Cyrus and Sarah McLachlan perform. (ABC)
Biggest Loser: Couples The players strive to stay on track away from the ranch. (NBC)
NCIS The gang investigates a colleague's murder in part 1 of an epic 2 parter. (CBS)

9:00 PM

Lost It's the last episode before the series finale event and we may finally get some answers. Maybe. (ABC)
Glee It's the Neil Patrick Harris episode! He plays Will's high school nemesis back for more NPH domination. (FOX)
NCIS: LA Callen's cover is blown and he must sever his ties with NCIS to protect the team. (CBS)
Deadliest Catch A skipper seeks out rare crabs and risks a mutiny in the process. (DSC)

10:00 PM

Justified Raylan and his cowboy hat hunt down an old lead to repair damage caused in previous episodes. (FX)
Parenthood Amber and Haddie's fight causes a family-wide rift, but not wide enough to rule out a sappy, Sunday dinner-type ending. (NBC)
The Good Wife Alicia continues to defend accused killer Colin Sweeney. (CBS)
The Hills More erratic behavior from Heidi and Spencer means a tough choice for the rest of the cast, but not that tough because they rehearsed it a few times before rolling. (MTV)
V It's the season finale, but it really should be the series finale because this show is terrible and no one watches it. Whatever, ABC is screwed after Lost ends anyway, so who cares?

Who's on the Late Night Couches Tonight?

The Daily Show: Rerun TBA (Comedy Central)
The Colbert Report: Rerun TBA (Comedy Central)
Jimmy Kimmel Live: Ryan Phillippe, Beth Ostrosky Stern, Dirty Heads (ABC, repeat)
Lopez Tonight: Common, Jorge Garcia, Bobby Slayton (TBS)
Chelsea Lately Bradley Whitford, Jo Koy, Doy Davidoff, Christina Pazsitzky (E!)
The Tonight Show with Jay Leno: Michael Douglas, Charles Barkley, Joe Nichols (NBC)
Late Night with Jimmy Fallon: Matthew Fox, Jane Lynch, Ray Wylie Hubbard (NBC)
Last Call with Carson Daly B.o.B., Mike Massimino (NBC)
Late Show with David Letterman: Jonah Hill, Janelle Monae, John Carney, a Top Ten List presented by Miss USA Rima Fakih (CBS)
Late Late Show with Craig Ferguson: Jon Favreau, Jakob Dylan (CBS)