The Big Bang Theory: Season 4 Episode 9: The Boyfriend Complexity
Starring: Johnny Galecki, Jim Parsons, Kaley Cuoco, Simon Helberg, Kunal Nayyar, Carol Ann Susi
Length: 21 minutes
On Air Date: 18 Nov 2010
The Big Bang Theory: S04E09 Description: Penny asks Leonard to pose as her boyfriend when her father visits. Howard, Raj and Bernadette have an awkward encounter when they spend the evening together.