Leonard and Sheldon's friendship is put to the test when Leonard wants to present a paper they co-authored at a physics convention, but Sheldon doesn't.
The Big Bang Theory
The Cooper-Hofstadter Polarization
season 1 episode 9
episode aired on march 2008
Episode rating
Cast of episode
73
13
12
2
1
- Sheldon Cooper
- Leonard Hofstadter
- Penny
- Howard Wolowitz
- Raj Koothrappali
- Chinese Leonard
- Chinese Sheldon