Next on ‘The Big Bang Theory’: The Gorilla Experiment

Brave Sheldon tackles the seemingly impossible on “The Gorilla Experiment,” the new December 7 episode of The Big Bang Theory.

In an attempt to help Penny better appreciate what Leonard does for a living…

Sheldon decides to try to teach her about his job, which means teaching her physics. Uh-huh. We’ll see ’bout that.

Also, Wolowitz catches a case of the green-eyed monster when Leonard begins spending time with his new girlfriend.

Check out the promo for “The Gorilla Experiment” below.

The Big Bang Theory airs Mondays on CBS at 9:30pm ET.