ABC Family unveiled debut dates for returning series Pretty Little Liars, Twisted, Switched At Birth, and The Fosters, in the second week of January. Social hit Pretty Little Liars returns Tuesday, January 7 at 8 PM ET (yes, the special Halloween episode still premieres tomorrow night, Tuesday, October 22, at 8 PM) . The series surged to its best season on record in Summer 2013, passing the 4 million viewer mark for the first time ever, thanks in part to ranking as the No. 1 cable series for the third consecutive summer among females 12-34 — and, not coincidentally, according to SocialGuide, enjoyed the “most social” TV series episode in television history with the series’ summer finale, breaking records with more than 1.9 million tweets. Led by that August 27 finale, Pretty Little Liars accounts for the Top 4 “most social” TV episodes of all time, and 6 of the Top 8 overall. Twisted will return with all-new episodes on Tuesday, January 7, at 9 PM; the third season of Peabody Award-winning Switched At Birth begins Monday, January 13 at 8 PM, with RJ Mitte (Breaking Bad), Max Adler (Glee), Sandra Bernhard (Roseanne), and Alec Mapa (Ugly Betty) guest starring, and recurring throughout the season. The Fosters will return with all-new episodes on Monday, January 13, 9 PM. ABC Family recently announced a second season pick-up for the series, which, according to Nielsen numbers, is the No. 1 ranked new cable TV series of Summer 2013 in millennial demos.