The Big Bang Theory: Season 5, Episode 13 - ProjectFreeTV

5 - 13: The Recombination Hypothesis

Leonard and Penny contemplate reviving their romantic relationship. Sheldon's attempt to order Star Trek memorabilia doesn't go as planned. When Leonard breaks up with Priya, he asks Penny out to a romantic dinner. Meanwhile, Sheldon gets frustrated when he can't defeat Amy in a game of Halo.