Mayim Bialik and Stephen Merchant in The Big Bang Theory (2007)

Kaley Cuoco and Johnny Galecki in The Big Bang Theory (2007)

Simon Helberg and Kunal Nayyar in The Big Bang Theory (2007)

Johnny Galecki and Jim Parsons in The Big Bang Theory (2007)

Johnny Galecki in The Big Bang Theory (2007)

Jim Parsons in The Big Bang Theory (2007)

Kaley Cuoco and Jim Parsons in The Big Bang Theory (2007)

Mayim Bialik and Melissa Rauch in The Big Bang Theory (2007)

Yoshi Barrigas in The Big Bang Theory (2007)

Mayim Bialik and Jim Parsons in The Big Bang Theory (2007)

Kaley Cuoco, Johnny Galecki, and Jim Parsons in The Big Bang Theory (2007)