The hilariously nerdy world of The Big Bang Theory truly grasps the viewers’ attention right from the very start. However, The Big Bang Theory has 12 seasons, and each season has several episodes.

This unexpected moment between Sheldon and Penny still has Big Bang Theory fans talking. Here’s what really happened during ...

Penny has a strange relationship with her family in The Big Bang Theory, and one mystery doesn't help matters.

and the wedding. The decision left Raj hanging awkwardly while others got more polished endings. Penny and Leonard’s rushed pregnancy arc still stirred controversy, but at least it was an arc.

Galecki’s Leonard married Cuoco’s Penny, with the on-screen couple tying ... during the Season 9 premiere before having a second wedding ceremony with friends and family in Season 10.

Leonard and Penny spend the whole of The Big Bang Theory season 8 engaged — and not really planning a wedding, either. They have a few ups and downs, of course, but Sheldon starts to understand ...

Maybe it speaks to the less than compelling state of Leonard and Penny's relationship these days that the focus in "The Conjugal Conjecture" was less on the impending wedding and more on the ...