S12E17 The Conference Valuation The Big Bang Theory
calendar_today 2007. Chuck Lorre. Bill Prady.
people Johnny Galecki. Jim Parsons. Kaley Cuoco. Simon Helberg.
When Penny and Bernadette go to San Diego for a pharmaceutical sales convention, Wolowitz is in charge of the kids. Also, Sheldon finds a book on experimenting on kids, and the guys plus Amy make a day of it.