British TV producers are responsible for some of the world's most popular shows. What is the secret to creating a hit format? Amol Rajan gets advice from Richard Osman, creative director of Endemol UK, Karen Smith, co-devisor of Strictly Come Dancing and Paul Smith who was part of the team behind Who Wants To Be A Millionaire. Robin Hilton is a partner at the law firm Sheridans and John McVay is Chief Executive of Pact.Presenter: Amol Rajan Producer: Richard Hooper Assistant producer: Eleanor KifvelPicture shows Richard Osman and Amol Rajan.