CLEVER BOY

Young Sheldon,, 8.30pm,p, E4

IN A bewitching g new episode of this Big Bang Theory prequel, , the young genius tires of school and goes s off to study with his pen pal, a professor played by the excellent Wallace ShawnSh (The Th Princess Bride). Dr Sturgis (Shawn, pictured with Iain Armitage) is an expert in theoretical physics, and sets Sheldon on an important path.