![The Big Bang Theory Season 7 Episode 20 The Big Bang Theory Season 7 Episode 20](https://image.tmdb.org/t/p/w185/j1FU0qKHx1F8FVBmK5DBOTrhsAr.jpg)
The Big Bang Theory Season 7 Episode 20
Sheldon faces a personal crisis after deciding he’s wasting his time with string theory. Meanwhile, a double date between Raj, Emily and the Wolowitzes ends in embarrassment for Howard.
Serie: The Big Bang Theory
Director: Mark Cendrowski
Guest Star: John Ross Bowie, Laura Spencer, Phyllis Timbes, Stephen Hawking