In tonight’s new episode, Sheldon gets sent off to a school for the gifted – and is understandably apprehensive about it, because he’s apprehensive about everything. But he’s got his grandmother to bolster his confidence – and already this first season of Young Sheldon, the scenes between young Sheldon (Iain Armitage) and his Meemaw (the great Annie Potts) have emerged as the show’s warm center, and true heart.