The Big Bang Theory: Season 2 Episode 18: The Work Song Nanocluster
Starring: Johnny Galecki, Jim Parsons, Kaley Cuoco, Simon Helberg, Kunal Nayyar, Carol Ann Susi
Length: 20 minutes
On Air Date: 19 May 2009
The Big Bang Theory: S02E18 Description: Sheldon’s assistance with Penny’s home-based business leads to disaster.