Contestants answer relatively simple questions on general knowledge categories; correct answers earn the contestants money. Contestants can then exchange some of their money for expensive prizes, which are offered at extreme discounts. The contestant who finishes the show with the most cash returns to compete in the next show.
—Jean-Marc Rocher
I looked this up and this was based on the original American verison which aired late 60's-early 70's timeframe. The version Stateside audiences are more familiar with (hosted by Jim Perry and Summer Bartholomew) was based on the Australian version as Reg Grundy acquired the rights to the show in 1980.
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