The Big Bang Theory Season 12 Episode 17
Overview
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.
Director: Mark Cendrowski
Guest Star: Andre Boyer, Ben Rauch, Chasty Ballesteros, Christine Baranski, Jason Kravits, Kevin Sussman, Pamela Adlon