Pretty Polly stockings (1986)...the one where the fabulous Catrina Skepper uses her stockings to substitute for a broken fan belt when her sports car breaks down!
There was a brilliant one for Blackcurrant Tango years ago which ended up with a boxing ring on the edge of Dover cliffs and the Tango Guy threatening to take on "Sebastian" (Who dared to complain about the new product) and the French with crowds of people and a couple of Harriers.