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.
1972
1989
1988
2014
2015
2019
2001
2024
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2005
1976
1987
2008
2004
2011
2007
