The Big Bang Theory was one of CBS's most popular sitcoms on television. For 12 seasons, fans got to know Sheldon Cooper up ...
long before he was cast as Sheldon's dad, Barber already appeared in The Big Bang Theory back in season 5 playing a different ...
The Big Bang Theory has nearly 300 episodes, and fans struggle to choose a personal favorite, but Season 2, Episode 3, “The ...