‘Pretty Little Liars’ Revving Up Social for Black and White Episode

They’ve used social media before to promote new seasons, and “Pretty Little Liars” is leveraging its social channels again ahead of tonight’s throwback black and white episode.

On its Facebook page, “PLL” is calling on fans to go black and white while changing its cover photo.

Post by Pretty Little Liars.

ABC Family also tweeted encouragement for fans to livetweet during the show with one of the show’s writers, costume designers, and star Keegan Allen (plays Toby Cavanaugh).

Live tweet with @Kockenlocker, @tankgirlyo and @KeeganAllen tonight at 8pm ET! Use #PLLChat to ask your questions! #PLLBlackandWhite

— ABC Family (@ABCFamily) February 11, 2014

#PLLBlackAndWhite airs tonight at 8pmET on ABC Family.