"Georgie & Mandy's First Marriage" exec producer Steve Holland on the show's opening credits dance, and the move from 'Young Sheldon' to to multi-cam.

Premiering Thursday, Oct 17 (8 p.m.), “Georgie & Mandy’s First Marriage,” is a prequel to “The Big Bang Theory,” following Georgie and his wife, Mandy (Emily Osment), as they raise their ...