Sunningdale School, Berkshire, is a fee-paying prep school with a cherished reputation - it gets nine out of ten of its boys into Eton. How is it done? David Dimbleby treads the corridors to find how this schoolboy world full of unforgettable sounds and smells, strange quirks and funny rituals, punishments and prizes will blend together to make a boy into a fellow fit for Eton.
