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.
1976
2014
1998
2001
2016
2021
1985
2003
2005
1945
1981
2024
2018
1973
1999
1995
