Ended with a big bang: ‘Young Sheldon’ boss on series finale — and Jim Parsons and Mayim Bialik’s return

nypost.com:

Spoilers ahead for the “Young Sheldon” series finale. In Wednesday night’s series finale, Sheldon (Iain Armitage) agreed to get baptized to please his mother, Mary (Zoe Perry), despite his atheism.

He also finally went to Caltech, wrapping up the childhood chapter of his life. Meanwhile, the show also had a flash-forward to Sheldon’s future, as original “The Big Bang Theory” stars Jim Parsons and Mayim Bialik reprised their roles as Sheldon and Amy. “That just felt really exciting as a way to bring this thing to a close,” executive producer Steve Holland told The Post. “And also just on a personal level, to get to have Jim and Mayim – because having done ‘The Big Bang Theory’ for many years; I spent a lot of my life with these two people – and they’re lovely.

It was really fun to watch them step back into these characters as older versions.”As the episode unfolds, scenes cut between young Sheldon and the older version of Sheldon, who is working on a memoir about his past.

It’s also revealed that in the future, Sheldon and Amy have a son and daughter. “It was exciting to have them back, but we wanted to make sure that they didn’t overwhelm the finale,” said Holland. “At the end of the day, we really wanted to make sure this was a ‘Young Sheldon’ finale… This was a fun bow to tie around it.