Plot: After seeking late Professor Proton's advice, Sheldon decides to skip the premiere of the new Star Wars movie to be with Amy on her birthday. Sheldon and Amy finally consummate their relationship. The other guys go nuts over seeing the movie premiere.
The Big Bang Theory Season 10 Premieres Monday, Sept. 19 8/7c
In the Season 10 premiere of The Big Bang Theory, everyone deals with an awkward morning after Sheldon's mother (Laurie Metcalf) and Leonard's father (Judd Hirsch) share an evening together. Plus, Penny's family arrives for the wedding ceremony, including her anxiety-ridden mother, Susan (Katey Sagal), and her drug-dealing brother, Randall (Jack McBrayer).
Meanwhile, Colonel Williams (Dean Norris), an Air Force Representative from the Department of Materiel Command, takes an interest in Howard's quantum gyroscope.