From about 1960 through the rest of the 20th century, American networks placed restrictions on the amount of money that could be given away on a game show, in an effort to avoid a repeat of the scandals of the 1950s. This usually took the form of an earnings cap that forced a player to retire once they had won a certain amount of money or a limit on how many episodes, usually five, on which a player could appear on a show. The introduction of syndicated games, particularly in the 1980s, eventually allowed for more valuable prizes and extended runs on a particular show. British television was under even stricter regulations on prizes until the 1990s, seriously restricting the value of prizes that could be given and disallowing games of chance to have an influence on the results of the game. (Thus, the British version of "The Price Is Right" at first did not include the American version's "Showcase Showdown", in which contestants spun a large wheel to determine who would advance to the Showcase bonus round.) In Canada, prizes were limited not by bureaucracy but necessity, as the much smaller population limited the audience of shows marketed toward that country. The lifting of these restrictions in the 1990s was a major factor in the explosion of high-stakes game shows in the later part of that decade in both the U.S. and Britain and, subsequently, around the world.