What to Watch Thursday: Vampire Diaries Is Back, Beauty and the Beast Begins, VP Debate and More

On TV this Thursday: The Vampire Diaries sucks more than ever with Elena now banging fangs, Beauty and the Beast gets off to a hairy start, It’s Always Sunny in Philadelphia returns with a (Nazi) treasure hunt and the vice presidential candidates face off. As a supplement to TVLine’s original features (linked within), here are 10 programs to look for tonight.

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8 pm The Vampire Diaries (The CW) | Season 4 premiere: Elena wakes up the morning after the accident to find her biggest fear coming true: She’s become a vampire. The issue at hand, as Damon so succinctly puts it: “You feed, or you die.” (Get a peek at tonight’s episode, then check out what’s coming up this season.)

8 pm The Big Bang Theory (CBS) | When Sheldon hires a new, female assistant (Bent‘s Margo Harshman), Amy feels threatened. Meanwhile, Wolowitz is having a rough time in space. (Did they run out of ice cream? ‘Cause that would bum me out, too.)

8:30 pm Up All Night (NBC) | Chris and an old, annoying friend (Childrens Hospital‘s Rob Huebel) engage in a passive-aggressive war. (Watch a video sneak peek!)

VIDEO | Beauty and the Beast‘s Kristen Kreuk and Jay Ryan Promise a New Kind of Superman

9 pm Beauty and the Beast (The CW) | Series premiere: Smallville‘s Kristin Kreuk plays Cat, who as a child witnessed the murder of her mother but was saved by a mysterious stranger. Years later, Cat becomes a police detective who reconnects with said stranger. His name is Vincent (Terra Nova‘s Jay Ryan), he’s a presumed-dead military doctor and he has a secret: When he gets angry, he turns into a real beast.

9 pm Vice Presidential Debate (All major networks) | Vice President Joe Biden and Congressman Paul Ryan discuss foreign and domestic policy in a two-hour debate. The event will be broadcast live from Centre College in Danville, Ky. and moderated by ABC News’ Martha Raddatz.

9 pm Project Runway (Lifetime) | This season’s penultimate episode has the designers presenting three looks to the judges in order to win one of three spots to show at Lincoln Center.

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10 pm It’s Always Sunny in Philadelphia (FX) | Season 8 premiere: Dennis and Dee’s grandfather Pop-Pop isn’t doing so well, and they have to decide whether or not to pull the plug on the onetime Nazi. Mac, Charlie and Frank, meanwhile, go on a search for Pop-Pop’s war spoils.

10:30 pm The League (FX) | Season 4 premiere: Taco’s business dealings with Jerry Jones land the guys an invite to the Dallas Cowboys’ Training Camp.

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11 pm Brand X With Russell Brand (FX) | Fall premiere: The Brit comedian’s late-night talk show returns for the second half of its first season.

11:30 pm Totally Biased With W. Kamau Bell (FX) | Fall premiere: Tom Morello of Rage Against the Machine/Audioslave stops by.

Which of the above is must-see for you? Also, hit Comments to offer your own tune-in suggestions.