There were two series, each of six episodes, set in a fictional Yorkshire town and based on the books by David Nobbs, the creator of Reginald Perrin and Henry Pratt. Each episode took place at a different social function (a "do") and followed the changing lives of two families, the working-class Simcocks and the middle-class Rodenhursts, together with their respective friends, Rodney and Betty Sillitoe, and Neville Badger.