Check out highlights from The Big Bang Theory Season 6 in this video. It debuted at Comic-Con 2013.

The Big Bang Theory Season 6 Quotes

Raj: Okay, here's another one: if a zombie bites a vampire, and the vampire bites a human, does the human become a vampire or a zombie? Or, a zompire?

Penny: If you don't mind me asking, uh, the potato clock -- how does it work? Is it a trick clock or a trick potato?
Professor Proton [to Leonard]: What do you two talk about?