Each episode will be 45 minutes long.[29] Kay is an established screenwriter, having written and co-created 2015 BBC Three sitcom series Crims - along with Grandma's House writer Dan Swimer.[30] His other television work as a writer and script editor includes Mrs. Brown's Boys, Mongrels, Watson & Oliver, Up the Women, Very British Problems, Flat TV, Our Ex Wife, Who is America?, Mitchell and Webb and Child Genius.[3]