As the search for the amateur chef of the year returns to TV for the fifth time, presenter Loyd Grossman explains why the series Is so successful: "I think it is because Masterchef is one of the few places on TV where you can see amateurs competing, solely motivated by the love of what they do."
Celebrity guests are lined up to judge the culinary creations each week. Tonight it is the turn of chef Anton Mosimann and actress Diana Rigg. Producer Richard Bryan
Executive producers Bradley Adams and Richard Kalms