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.
1977
1963
1990
2021
2020
1965
2015
2025
2019
2023
2011
2005
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2009
