Scoop: THE BIG BANG THEORY on CBS - Today, September 21, 2017

On the episode "The Recollection Dissipation" - Sheldon pushes himself to the limit when he collaborates on projects with Leonard and Wolowitz as well as Amy on the same day. Also, Bernadette is nearing the end of her maternity leave and must return to work, on a rebroadcast of THE BIG BANG THEORY, Thursday, Sept. 21 (9:00-9:30 PM, ET/PT) on the CBS Television Network. Joel Murray guest stars as Doug. (Originally broadcast 4/6/17.)

On the episode "The Long Distance Dissonance"- The gang is concerned when Sheldon's former admirer, Dr. Ramona Nowitzki (Riki Lindhome), resurfaces while Amy is away at Princeton, on a rebroadcast of the 10th season finale of THE BIG BANG THEORY, Thursday, Sept. 21 (8:00-8:31 PM, ET/PT) on the CBS Television Network. (Originally broadcast 5/11/17.)

Leonard and Sheldon are brilliant physicists - geniuses in the laboratory but socially challenged everywhere else. Enter beautiful, street-smart neighbor Penny, who aims to teach them a thing or two about life. Despite their on-again, off-again relationship in the past, Leonard and Penny have finally gotten married.

Even Sheldon has found a female companion, entering into a "relationship agreement" with neurobiologist Amy Farrah Fowler, and he recently took their relationship to the next level by proposing marriage. In their free time, Leonard and Sheldon enjoy fantasy role-playing games with their ever-expanding universe of friends, including fellow scientists Koothrappali, Wolowitz and Wolowitz's adorable microbiologist wife, Bernadette, who is adjusting to life with their new baby girl.