Tic Tac Dough (1956)

The classic quiz show hosted by Win Elliot. In this game, the contestants are faced with a tic-tac-toe board with a different category in each square. To put their mark (X or O) in the square they want, they must first answer a question in the category listed there. For each question they answer correctly, they win a cash prize. The first contestant to put their mark in three squares in a row gets to keep the cash and move on to a bonus round for even bigger prizes.