Bill Prady

92 The Separation Oscillation To ease Penny's mind, Leonard pays a visit to the woman he kissed during his expedition to the North Sea, while...

920 The Big Bear Precipitation A weekend getaway to a cabin takes a troublesome turn when Sheldon reveals a secret about Leonard, while back at...

918 The Application Deterioration Howard reconsiders entering into a legal partnership with Leonard and Sheldon regarding the patent for the infinite persistence gyroscope. Also, the...

914 The Meemaw Materialization Sheldon's grandmother, aka Meemaw, visits and there's friction between her and Amy, which intensifies after the elderly woman blurts out a...

1113 The Solo Oscillation When Sheldon kicks Amy out to work solo, she and Leonard bond during a series of science experiments. Also, Bert the...

913 The Empathy Optimization Dealing with an under-the-weather Sheldon is so draining for Penny, Leonard and the gang that they decide to treat themselves to...

924 The Convergence Convergence In the Season 9 finale, Leonard's recently divorced parents roll into town, as does Sheldon's holy-roller mother, and all hell breaks...

921 The Viewing Party Combustion During a group gathering, a disagreement between Leonard and Sheldon turns into a battle royal, forcing everyone to choose sides. Q&A...

919 The Solder Excursion Diversion Sheldon shocks Amy with a startling revelation after she buys him a new laptop. Meanwhile, Raj throws Leonard and Howard...

922 The Fermentation Bifurcation Sheldon stays behind to spend quality time with the pregnant Bernadette when the rest of the gang toddles off to a...