Whoops Apocalypse.

Whoops Apocalypse is a six-part 1982 British sitcom by Andrew Marshall and David Renwick, made by London Weekend Television for ITV. Marshall and Renwick later reworked the concept as a 1986 film of the same name from ITC Entertainment, with almost completely different characters and plot, although one or two of the original actors returned in different roles. As the Apocalypse nears, US President Johnny Cyclops tries to run a reelection campaign whilst also dealing with the Russians, a deposed Shah needing to be hidden, and a new weapon called a 'quark' bomb.