![The Big Bang Theory Season 3 Episode 19 The Big Bang Theory Season 3 Episode 19](https://image.tmdb.org/t/p/w185/j64iUb52W2IYE9qV9pLi5tFq8IE.jpg)
The Big Bang Theory Season 3 Episode 19
A fight between Leonard and Penny threatens their relationship, while Sheldon battles Wil Wheaton in bowling.
Serie: The Big Bang Theory
Director: Julie Fleischer, Mark Cendrowski, Nikki Lorre
Guest Star: Kevin Sussman, Wil Wheaton