From Wikipedia:
Password is an American television game show. The show was hosted by Allen Ludden and was created by Bob Stewart for Goodson-Todman Productions.
Password originally aired for 1,555 daytime telecasts each weekday from October 2, 1961 to September 15, 1967 on CBS, along with weekly prime time airings from January 2, 1962 to September 9, 1965 and December 25, 1966 to May 22, 1967. An additional 1,099 daytime shows aired from April 5, 1971 to June 27, 1975 on ABC.
The show's announcers were Jack Clark; Gene Wood, Bern Bennett and Lee Vines on CBS, and John Harlan on ABC.
Two revivals later aired on NBC from 1979-1982 and 1984-1989. A revival with a $1 million top prize and Regis Philbin as host began development for CBS in late 2007, and premiered on Sunday June 1, 2008.
