The Big Bang Theory
The Irish Pub Formulation
Season 4, Episode 6 · Aired 2010-10-28
Synopsis
Leonard keeps an affair secret from Sheldon, Howard and Raj.
In the series
This episode is part of The Big Bang Theory (2007–2019) on CBS.
Nerd culture goes multi-cam prime-time global.
Key cast
- Johnny Galecki as Leonard Hofstadter
- Jim Parsons as Sheldon Cooper
- Kaley Cuoco as Penny
- Simon Helberg as Howard Wolowitz
- Kunal Nayyar as Raj Koothrappali
- Mayim Bialik as Amy Farrah Fowler