Everyone's favorite nerdy scientists (and blonde neighbor) are back in San Diego to promote Season 5 of The Big Bang Theory. Cast members Johnny Galecki, Kaley Cuoco, Simon Helberg, Kunal Nayyar, Mayim Bialik, and Melissa Rauch, hit the floor to talk about their hit comedy. Check them out below.

RELATED: Labyrinth Mini Epics Figures Unveiled by Weta Workshop