KRBK (channel 49) is a television station licensed to Osage Beach, Missouri, United States, serving the Springfield area as an affiliate of the Fox network. It is owned by Nexstar Media Group alongside MyNetworkTV affiliate KOZL-TV (channel 27); Nexstar also provides certain services to CBS affiliate KOLR (channel 10) under a local marketing agreement (LMA) with Mission Broadcasting. The stations share studios on East Division Street in Springfield, while KRBK's transmitter is located on Switchgrass Road, north of Fordland.
The station first signed on the air on August 1, 2009; prior to signing on KRBK, Koplar Communications served as the founding owner of KPLR-TV in St. Louis—which it sold to ACME Communications in 1997 (it is now a sister station to KRBK)—and formerly owned KMAX-TV in Sacramento—which once bore the KRBK-TV call letters and which Koplar sold to Pappas Telecasting in 1994 (it is now owned by CBS News and Stations). It immediately became the MyNetworkTV affiliate for the Ozarks. At the time KRBK signed on, MyNetworkTV programming had not been available in the market for several months, after Harrison, Arkansas–based KWBM (channel 31) switched to Daystar upon being sold to the network as part of Equity Media Holdings's auction of its television stations. The station originally branded as "KRBK-HD".