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.
1991
1963
1950
1987
1986
1993
1979
2000
1966
1998
2014
2021
2013
2023
2022
1958
