Photo: Michael Yarish/Warner Bros Inc
Thursday, May 7 at 8 PM ET/PT on CBS
In the finale, titled “The Commitment Determination,” Sheldon (Jim Parsons) pushes Leonard (Johnny Galecki) and Penny (Kaley Cuoco-Sweeting) to choose a date for their wedding and deals with dramatic changes in his own relationship with Amy (Mayim Bialik).
This hugely popular comedy series revolves around Leonard and Sheldon, two 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 engaged. Even Sheldon has found a female companion, entering into a “Relationship Agreement” with neurobiologist Amy Farrah Fowler. 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.