Thursday's TV highlights: 'The Walking Dead: Behind the Dead' on AMC
Superstore Tensions rise among the employees after an attempted robbery, and Glenn (Mark McKinney) has a tough time firing a security guard. 8 p.m. NBC
Supernatural The manifestation of Jack’s (Alexander Calvert) abilities alarms Sam and Dean (Jared Padalecki, Jensen Ackles), and Donatello's...