Sara Gilbert and Johnny Galecki in The Big Bang Theory (2007)

Kaley Cuoco in The Big Bang Theory (2007)

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

Jim Parsons in The Big Bang Theory (2007)

Sara Gilbert in The Big Bang Theory (2007)

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

Johnny Galecki in The Big Bang Theory (2007)

Kunal Nayyar in The Big Bang Theory (2007)

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

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

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

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