The Big Bang Theory (2007)

S8E19 The Skywalker Incursion

Leonard and Sheldon get the chance to speak at UC Berkeley, but they decide to make a stop along the way in hopes of meeting a personal hero. Meanwhile, Bernadette and Howard find themselves in a heated argument about the future of his Doctor Who TARDIS. To resolve their conflict, Raj and Amy step in, suggesting a ping pong match to determine the outcome.