SITCOM SPECIAL

In The Long Run Christmas Special, 10pm, Sky One

IDRIS ELBA’S Eighties comedy is a hearty kind of show, one well-suited to having its own festive special. Tonight, Walter goes into Christmas overdrive in the run-up to the big family get-together, which is bound not to run smoothly — and not just because Bagpipes (Bill Bailey, pictured) is doing the food.