Andy Cohen's "Watch What Happens Live" launches its new format this week, airing five nights a week, Sunday through Thursday (premieres Sun., Jan. 8, 11 p.m. EST), and the guests are getting super-sized, too.At the Television Critics Association (TCA) press tour, the network announced that Cohen's guest line-up will now include more celebrities from outside the Bravo universe, as well as comedienne Sandra Bernhard, one of Cohen's favorite guests, who has been bumped up to "regular correspondent" status.