'Pretty Little Liars' Season 3 winter premiere: Unlock secret footage with Mona's tweets

"Pretty Little Liars" and "The Lying Game" have a special treat for PLL fans Tuesday, Jan. 8 during the premieres of both shows. Mona is going to send fans clues and snipes via Twitter at the handle @MonaVanderwaal.

If you collect all the tweets coming your way, you can decode them to unlock a secret video that will feature footage not broadcast in the premiere episode of "Pretty Little Liars." Oooh, juicy!

Are you getting excited, PLL fans? We've seen the premiere and it's a lot of fun. Mona's out of the nuthouse, Meredith is back and Ali has a particularly sinister flashback with a certain adult. Tune in Tuesday, Jan. 8 at 8 p.m. ET/PT on ABC Family to catch all the fun.