Trivia: The Fourth series, although set in Cuba, was actually filmed in the Dominican Republic, after the Cuban authorities refused filming permission. Also, the "winter scene" in St. Petersburg that featured in the opening part of Series 4, episode 1, was actually filmed at Shepperton Film Studios in Surrey - with a lot of assistance from some ex-RAF snow blowing machines to provide the appropriate wintry weather.
Trivia: A third season of Auf Weidersehen, Pet was originally planned soon after the second series completed, to be set in Moscow, seeing the lads rebuilding the British Embassy. If it had gone ahead, it would have been made by Central TV for the ITV network in 1987. However, it was declared too expensive, and the other actors did not want to carry on without Gary Holton (Wayne) who died in October 1985 during the filming of the Second Series. But the idea was revived in 2002, and formed the basis of the storyline for the fourth series (filmed 2003 and first broadcast on BBC-1 in January 2004) with one main change - Havana replacing Moscow.