TONIGHT: Lots of TV! We have the season premieres of The Apprentice and It's Always Sunny in Philadelphia, plus new episodes of Vampire Diaries, Nikita, The Real Housewives of DC, Watch What Happens: Live, and oh so much more!

8:00 PM

Vampire Diaries Caroline leaves the hospital and attends the Mystic Falls Carnival, where Matt attempts to tell her how he feels about her. (CW)
Extreme Cuisine with Jeff Corwin The host visits Spain and checks out regional culinary specialties, including gooseneck barnacles and Ibérico pork. (Food Network)

9:00 PM

The Apprentice Season 10 kicks off with the arrival of 16 candidates, all impacted by the economic downturn and trying to revive their careers by winning employment with Donald Trump. (NBC)
Nikita Nikita tries to interfere with Division's protective custody of a Slavic leader wanted for war crimes, but is thwarted by a band of mercenaries with the same objective. (CW)
The Real Housewives of DC Mary and Cat connect over parenting issues, and family dramas haunt Stacie, who hopes to find her biological father. Elsewhere, Cat copes with the death of a friend; Michaele searches for a new home; and Tareq's family troubles escalate. (Bravo)

10:00 PM

It's Always Sunny in Philadelphia Season 6 premiere: Mac defends traditional marriage, while the rest of the gang reap the rewards of wedded bliss. (FX)
BBQ Pitmasters A turducken challenge has four pitmasters preparing chicken stuffed in a duck stuffed in a turkey for $5000. (TLC)
Watch What Happens: Live "Real Housewives" personalities Ramona Singer and Cat Ommanney are the guests, but Andy Cohen will make it all about himself. (Bravo)

Who's on the Late Night Couches Tonight?

The Daily Show: Bill Clinton (Comedy Central)
The Colbert Report: Lawrence O'Donnell (Comedy Central)
Jimmy Kimmel Live!: Ben Affleck, Maura Tierney, Usher (ABC)
Lopez Tonight: Thomas Jane, Tim Gunn, Devo (TBS)
Chelsea Lately: Jared Leto, John Caparulo, Arden Myrin, Lavell Crawford (E!)
The Tonight Show with Jay Leno: Kate Walsh, Jason Ritter, Santana & India.Arie (NBC)
Late Night with Jimmy Fallon: Jon Hamm, Amy Ryan (NBC)
Late Show with David Letterman: Joaquin Phoenix, Bar Refaeli, Anthony Hamilto (CBS, Repeat)
Late Late Show with Craig Ferguson: William Shatner, Sloane Crosley (CBS)