Bernadette and Penny travel to San Diego for a pharmaceutical sales convention. Back home, Amy and the guys experiment on the Wolowitz children when Sheldon finds a book on it.
Episode rating
Cast of episode
54
22
16
5
2
1
- Penny
- Amy Farrah Fowler
- Sheldon Cooper
- Bernadette Rostenkowski
- Leonard Hofstadter
- Howard Wolowitz
- Raj Koothrappali
- Stuart Bloom
- Dr. Beverly Hofstadter
- Danny
- Halley Wolowitz
- Karen
- Kwame
- Darren