CHARLOTTE, N.C. — Adam Wurtzel spoke with the stars of “Georgie & Mandy’s First Marriage,” ahead of the sitcom’s premiere. The “Young Sheldon” sitcom stars Montana Jordan and “Georgie” and Emily Osment as “Mandy.”  Unlike “Young Sheldon,” the new spinoff series is taped before a live studio audience, which is a new experience for Jordan. “Georgie & Mandy’s First Marriage” premieres tonight at 8pm on CBS.