"The Great British Bake Off" pits 10 amateur bakers against one another. They are gradually eliminated during rounds that take place in various locations around the country. Each episode features three different challenges relevant to a particular discipline and their efforts are judged by cookery writer Mary Berry and professional baker Paul Hollywood. Much-needed light relief is provided by presenters Mel Giedryoc and Sue Perkins as they bounce about with megaphones, shouting words of encouragement. In the first edition, the contenders were in the Cotswolds tasked with making cakes. The first of six episodes originally premiered on BBC Two in 2010. An expanded series returned to the same channel the next year.