KOLR (channel 10) is a television station in Springfield, Missouri, United States, affiliated with CBS. It is owned by Mission Broadcasting and operated by Nexstar Media Group under a local marketing agreement (LMA) making it sister to KRBK (channel 49), a Fox affiliate, and KOZL-TV (channel 27), an independent station with MyNetworkTV. The three stations share studios on East Division Street in Springfield; KOLR's transmitter is located on Switchgrass Road, north of Fordland.
KOLR is the third-oldest television station in Missouri and the oldest outside St. Louis and Kansas City. It began broadcasting on March 15, 1953, as KTTS-TV, the television extension of KTTS radio, and has been Springfield's CBS affiliate since its inception. The station changed its call sign from KTTS-TV to KOLR in 1971, in preparation for a sale of the radio portion of the business. Independent Broadcasting Company, the original and local owners, sold KOLR in 1999 to VHR Broadcasting, which entered into an agreement with channel 27 to combine facilities and sales staffs, among other resources. Nexstar became the operator in 2003 when it bought channel 27's owner, Quorum Broadcasting; simultaneously, Mission acquired KOLR. The station has long been a distant second-place finisher to KYTV in local news ratings in the market.