When KSD-TV first signed on the air on February 8, 1947; it was owned by the Pulitzer Publishing Company, publishers of the St. Louis Post-Dispatch and owners of KSD radio (550 AM, now KTRS). It was the eighth television station to sign on in the United States, the first station in Missouri and the second station located west of the Mississippi River.
The station has a long history of producing local programs, including the Wranglers Club with Texas Bruce (1950–1963), Corky’s Colorama with Clif St. James playing Corky the Clown (1963–1980), Newsbeat hosted by Dick Ford and John Auble (1976–1984), and Midday A.M. (c. 1979–1986).
Pulitzer sold KSD radio to Combined Communications Corporation in 1979 (prior to Combined’s merger with the Gannett Company that same year),and KSD-TV’s call letters were modified to the current KSDK. (Wikipedia)