The theme tune (used in closing each show) is listed as being by a band called The Other Two who are in fact a husband and wife team who were the keyboard player and the drummer from New Order (the male, who is the drummer, also played with New Order's previous line-up called Joy Division). See more
Look, missus, if you want the street clean, you do it; you've got the broom, and while you're at it, why don't you rattle yoursel' 'round the estate on it a couple of times. You're a miserable old witch, man!
[Hops away, riding his spade like a witch's broom