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

Simon Helberg in The Big Bang Theory (2007)

Jim Parsons in The Big Bang Theory (2007)

Riki Lindhome 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)

Johnny Galecki in The Big Bang Theory (2007)

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

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

Kaley Cuoco and Riki Lindhome in The Big Bang Theory (2007)

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

Kunal Nayyar in The Big Bang Theory (2007)

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

Jim Parsons and Riki Lindhome in The Big Bang Theory (2007)

Sara Gilbert, Jim Parsons, and Riki Lindhome in The Big Bang Theory (2007)

Emily Happe in The Big Bang Theory (2007)

Sara Gilbert in The Big Bang Theory (2007)