TV WORTH WATCHING:
BBC America, 8 p.m. ET; 5/11/2013
SEASON FINALE: This is a very special episode, both behind and in front of the camera. Behind the scenes, it’s written by noted genre author Neil Gaiman, who already has contributed one impressive episode of Doctor Who. And in front of the camera, it makes room for the return of one of the most familiar and tenured foes in the Doctor’s universe: the Cybermen.