Staking out its third different slot this season, Happy Endings will start airing back-to-back episodes on Fridays at 8 p.m. beginning March 29. Yikes. The sitcom will get bumped from its Tuesday night space for a new season of Celebrity Wife Swap, ABC announced on Wednesday. All together now: Double yikes. Not quite as bad as the verdict that Don’t Trust the B—- in Apartment 23 is essentially doomed, but the switch has a very “this is the end” vibe.