The show featured a panel of celebrity guests, who would be presented with an unusual object; each would give a ridiculous explanation of what the object was used for. Contestants (there were two on the 60s version, four on the 80s version and the first season of the 70s version, and three during the Ludden era) would place wagers on which star was telling the true story. They played for money in the 70s version; but they played for points in the 80s version. They started at 100 dollars/points at the beginning of the game and were allowed to bet in $10 increments up to $100 during the first season of the 70s version, half of their earnings during the Ludden era, and the 80s version's betting range was 10 to 50 points.
