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.
1987
1961
2006
2005
2003
2009
2014
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2023
2022
2015
1964
2010
1971
