Young Sheldon Series Finale: SURPRISES About Sheldon's Future

'Young Sheldon' says goodbye after seven seasons. 'The Big Bang Theory' prequel series ended with a two-part finale, but not without dropping a few surprises about Sheldon Cooper's future. 'Big Bang' stars Jim Parsons and Mayim Bialik return as adult Sheldon and his wife, Amy Farrah Fowler, in flash-forward moments making several new reveals in the finale.