 Two celebrities were paired as the "Home Team"; the third celebrity and the civilian contestant made up the opposing team, which was known as "The Challengers".These two teams played a word game in which a player seated in an isolation booth attempted to guess a famous name, title, or phrase posed by their teammate who displayed letters as clues (one at a time, starting with three letters, with one of them being the first letter in the subject) on their own individual game board.A musical tone every few seconds served as a signal to add another letter.