'The Great British Baking Show' Judges Want Superfan Keira Knightley to Compete! (Exclusive)

On your mark, get set, bake! Judges Paul Hollywood and Prue Leith are dishing to ET about their biggest 'Baking Show' celebrity interactions and if the casts of 'Lucifer' and 'Bridgerton' have what it takes to bake in the tent. Plus, would Nicola Coughlan and the cast of 'Derry Girls' be welcomed back to the show after their disastrous episode? A new season of 'The Great British Baking Show' premieres this fall on Netflix.