Question about international versions of Wheel

I would say sometime during the 1990s. When Italy's and France's versions started in 1987 (not including Pentatlon and Pentathlon respectively), a lot of other European countries began following suit in the late 80s and early 90s. As some of the versions that were on in the 1990s ended rather quickly, such as Norway and Sweden's versions, others lasted longer such as Germany's and Spain's. Those that didn't last long were replaced by other countries such as Romania, although Romania's didn't last too long either.