From "The Staircase Implementation" to "The Opening Night Excitation," these are the funniest episodes of The Big Bang Theory ...

Mary Cooper, Sheldon's deeply religious and God fearing mother, appeared in both Young Sheldon and the popular sitcom The Big Bang Theory (TBBT).

"Sheldon, when I was a little girl I used to dream about my wedding. Then I stopped ... marrying you." "Amy, I usually know exactly what to say, but in this moment I have no words.

“Wearing a wedding dress is not comfortable for ... She even got choked up over the vows Amy recited to Sheldon. “It is emotional to tell someone you love them even when you’re acting.

In PEOPLE's exclusive sneak peek, Amy Farrah Foweler (Bialik) recalls how Sheldon Cooper (Parsons) had a nonchalant demeanor while she was in labor with their child Esther Kang is a writer at PEOPLE.