I can't believe the Big Bang Theory was on for ten seasons. What is your favorite Sheldon moment?
Bazinga!  Every time he said it!
ha! The ball pit scene was funny
I loved how the show ended.  It was one of the few endings where the finale really encompassed the drive of the show.
It was neat to see Sheldon grow and show so much emotion in the last episode- especially during his heartfelt acceptance speech
He really grew up during the show.  
Jim Parsons did a great job portraying Sheldon.
Yes - my daughter loves to watch Young Sheldon.  Getting the back story is hillarious/
Oh, interesting! Does Professor Proton ever show up?
No.  Not in Young Sheldon.