Car Sharks was an American television game show created by Mark Goodson-Bill Todman Productions. Although various changes were made to the game's format throughout its run, the core format remained the same. Two contestants competed against each other, guessing to the answer to various questions (generally survey questions) to gain control of a row of cards, and then determine whether the next card in the line was higher or lower in value. (The concept of determining the cards' value is similar to the card game acey-deucey.)