The Great British Bake Off is a British television baking competition, produced by Love Productions, in which a group of amateur bakers compete against each other in a series of rounds, attempting to impress two judges with their baking skills. One contestant is eliminated in each round, and the winner is selected from the contestants who reach the final. The first episode was aired on 17 August 2010, with its first four series broadcast on BBC Two, until its growing popularity led the BBC to move it to BBC One for the next three series. After its seventh series, Love Productions signed a three-year deal with Channel 4 to produce the series for the broadcaster. The programme was originally presented by Sue Perkins and Mel Giedroyc, with judges Mary Berry and Paul Hollywood. Following its move to Channel 4, Noel Fielding and Sandi Toksvig took over as presenters, but Toksvig was later replaced by Matt Lucas. Hollywood and Prue Leith are the current judges.