‘Young Sheldon’ Star Iain Armitage Says the Show Was a ‘Big Undertaking’ as Co-Stars Acknowledge He Could Be ‘Difficult’ to Work With

“Young Sheldon” aired its final episode in May 2024, and now, just over two years later, the cast of the CBS sitcom is getting candid about their experience filming the Sheldon Cooper-focused “Big Bang Theory” prequel and working with star Iain Armitage, who was just eight years old when the series…