ABC.com is giving Lost fans a Valentine's Day surprise with the first installment of four video back stories (Jack, Kate, Sawyer and Locke). Created to provide new viewers insight into the lives of the series characters and to give fans an opportunity to see characters back stories in chronological order, each video combines scenes from previously aired episodes. Every Wednesday four back story segments will debut on ABC.com until the end of the season (60 total).

Go to ABC.com for this season's previously aired episodes on its broadband video player. And as announced last week, ABC.com has also added several new features on its "Lost" site, including a new video podcast with executive producers Damon Lindelof and Carlton Cuse, which offers a special sneak peek at extra content from the series Season Three DVD, to be released later this year.

Additionally, visitors to ABC.com will find a new exclusive feature called Writers Rotation that showcases the favorite music and listening selections of members of the "Lost" production team, plus an updated version of Lost & Found, which highlights not-to-be-missed moments in upcoming episodes, as well as excerpts from the official "Lost" magazine, updated games, photos and video clips.