Successful TV formats like Big Brother, Pop Idol, X-Factor and Who Wants To Be A Millionaire are sold and broadcast all round the world, netting their creators billions of pounds. But how can you protect such a valuable asset? And are too many copycat versions saturating the market and crushing original ideas? Evan Davis finds out from those at the top of the lucrative global industry of TV formats. Guests: Charlie Parsons, Creator of Survivor and CEO, Castaway Television Productions Louise Pedersen, Managing Director, all3media international Ricardo Pereira, TV Globo Director for Europe Producer: Sally Abrahams.