Contestants play a version of tic-tac-toe by answering questions to win squares on a game board. The popular quiz show enjoyed many incarnations from the 1950s to the '90s, both in daytime and prime time, on NBC, CBS and in syndication.
1999
2011
2010
2015
2016
2014
2017
2012
1989
2003
1987
1964
2021
2024
