The station first signed on the air as KSD-TV 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).
Alternate circular logo
Station ID (1976–1979)
KSD-AM was sold in 1979, and KSD-TV modified its callsign to KSDK-TV on July 10, 1979, due to an FCC regulation in place at the time that stated that TV and radio stations in the same market, but different ownership had to use different call signs. The station took on a new logo to go with the callsign change.
Station ID (1982–1984)
"Channel 5, just watch us now!" ID (1982–1983)
Simplified version of the previous logo; it now is bi-sected; previously, it had five stripes going through it. Pulitzer traded channel 5 to Multimedia, Inc. for WYFF and WXII-TV in 1983, though the takeover of WYFF would not be completed until 1985.
This Helvetica "5" remained unchanged by KSDK for a long time.
Station ID (1995–2015)
NewsChannel 5 logo (1998–2013)
NewsChannel 5 logo (2013–2016; the logo did not include the Gannett byline on-air,. The byline was retired in 2015 with the Gannett-Tegna split)
5 On Your Side logo (2015–2017)
5 On Your Side logo with Tegna corporate byline (2015–2017)
70th Anniversary logo (2017)
Alternate logo with Tegna corporate byline
5 On Your Side Sports logo (2017–present)
Current "5 On Your Side" news open
KSDK news opens
KSDK Channel 5 Eyewitness News Open - (February 6, 1986)