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
2015
2021
1989
2016
2011
2020
2013
1968
2024
2004
2002
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1994
1974
