Zap2it's 'Vampire Diaries' Twitter giveaway: Win an autographed poster from Ian, Nina, Paul, or Joseph!

tvd-gallery-four.jpg "Vampire Diaries" fans, we're hurtling at breakneck speed toward the final episode of 2011...but thanks to our pals at The CW, Zap2it has something to tide you over until the show returns on Jan. 5.

Tonight (Thurs. Nov. 3) we'll be giving away four autographed "Vampire Diaries" posters: One from Ian Somerhalder, one from Nina Dobrev, one from Paul Wesley, and one from Joseph Morgan.

How to win? First, make sure you follow @Zap2it on Twitter.

At 8 p.m. EST we'll tweet a trivia question about tonight's episode. Don't leave that episode lingering on your DVR for too long, though -- you only have until 12 noon EST on Friday to get the correct answer in. Make sure you tag @Zap2it in your response!

On Friday, we'll randomly choose four winners out of everyone who answered correctly to receive a random poster. For more details on the official rules, click here!

If you don't win tonight, don't worry... we're doing it all again next week for the big Homecoming episode! Don't forget to tune in at 8 p.m. EST on The CW.
Photo/Video credit: The CW