There were two full episodes without Penny early on in Season 4 of The Big Bang Theory. The character was absent in Episode 5, "The Desperation Emanation," and Episode 6, "The Irish Pub Formulation." ...

for a finale that has truly given me a loss for words," Cuoco captioned a picture of the final ... roles on Season 3 of "The Big Bang Theory" before joining the main cast in Season 4.

and Penny asks Leonard to convince her dad that they are still together in The Big Bang Theory season 4, episode 9, but it's only an episode-long ruse and the pair are mostly at each other's ...

The Big Bang Theory Season 6, Episode 20, “The Tenure Turbulence,” pits Sheldon, Raj, and Leonard against each other as they all go after a tenure position that opens up at their workplace ...

(Watch below.) The line is, of course, pulled from Big Bang Theory Season 4, Episode 20, “The Herb Garden Germination,” which finds Raj’s sister Priya telling Leonard that her brother has an ...