Darren Michaels/Warner Bros. Entertainment Inc.
2 of 40
The Big Bang Theory (CBS)
Airs: Thursday, May 15, 8/7c
Sheldon finds himself at a crossroads after Caltech refuses to let him change his field of study. His world is even more rocked when Leonard and Penny discuss living together without him. The couple will also broach the subject of getting engaged again, and executive producer Steve Molaro promises at least one more proposal. Will it actually stick this time? "There's a lot of discussion in the last few episodes and they both realize they have to decide how serious they are about doing this," he says. Elsewhere, Raj and Emily continue to heat up, Howard and Bernadette try to find a caregiver for an injured Mrs. Wolowitz, and the season ends with "many big moves" and cliff-hangers (yes, multiple) that "affect everyone," Molaro teases.