|Branding||KOLR 10 (general)
KOLR 10 News (newscasts)
|Channels||Digital: 10 (VHF)
Virtual: 10 (PSIP)
(Mission Broadcasting, Inc.)
|Operator||Nexstar Media Group|
|First air date||March 14, 1953|
|Call letters' meaning||Pronounced "color" as in color television|
|Former callsigns||KTTS-TV (1953–1970)|
|Former channel number(s)||10 (VHF analog, 1953–2009)
52 (UHF digital, –2009)
|Former affiliations||DuMont (1953–1955)
|Transmitter power||26 kW|
|Height||631 m (2,070 ft)|
|Public license information:||Profile
KOLR, virtual and VHF digital channel 10, is a CBS-affiliated television station licensed to Springfield, Missouri, United States. The station is owned by Mission Broadcasting; Nexstar Media Group, which owns MyNetworkTV affiliate KOZL-TV (channel 27), operates KOLR under a shared services agreement. The two stations share studio facilities located on East Division Street in Springfield; KOLR maintains transmitter facilities located on Switchgrass Road north of Fordland. On cable, the station is available on Mediacom channel 9 in standard definition and digital channel 709 in high definition.
|Channel||Video||Aspect||PSIP short name||Programming |
|10.1||1080i||16:9||KOLR-DT||Main KOLR programming / CBS|
|This section needs expansion with: further information on the history of KOLR. You can help by adding to it. (October 2011)|
The station first signed on the air on March 14, 1953 as KTTS-TV; it was founded by the Independent Broadcasting Company, owners of KTTS radio (1400 AM, now KSGF on AM 1260, and 94.7 FM). Channel 10 originally operated from studio facilities located downtown, on the southwest corner of Walnut and Jefferson Streets in the Springfield Chamber of Commerce building. The station has been a CBS affiliate since its sign-on; however, it also carried a secondary affiliation with ABC, which was shared with primary NBC affiliate KYTV (channel 3) until KMTC (channel 27, now KOZL-TV) signed on in 1968.
The station changed its call letters to KOLR-TV in 1970 (the "-TV" suffix was dropped from the calls in 1985). At 2,000 feet (610 m) high, the station's transmission tower is the second tallest in the United States, only 19.2 meters lower than the highest. The radio stations were sold to Wichita, Kansas-based Great Empire Broadcasting in 1972.
In 1998, Independent Broadcasting was sold to another entity,[who?] which entered into a shared services agreement with Woods Communications, owner of Fox affiliate KDEB. This combined entity was later purchased by Quorum Broadcasting. On December 31, 2003, Quorum merged with the Irving, Texas-based Nexstar Broadcasting Group; as the Springfield market did not have enough television stations to permit a legal duopoly, KOLR was sold to Brecksville, Ohio-based Mission Broadcasting. This arrangement also placed KDEB-TV in the unusual position of being the senior partner as a Fox-affiliated station in a virtual duopoly with a CBS affiliate (most virtual or legal duopolies involving a Fox affiliate and a Big Three-affiliated station result in the Fox affiliate serving as the junior partner); from September 2011 (when channel 27 lost its Fox affiliation) to September 2014 (when it joined MyNetworkTV) it was the only duopoly (virtual or legal) in existence involving a "Big Three" station in which an independent station serves as the senior partner.
On January 19, 2007, the station signed on its digital signal at full-power and began broadcasting network programming in high definition. KOLR has been digital-only since April 16, 2009.  The station's analog transmitter operated at an effective radiated power of 316 kilowatts, the highest allowed for a VHF Band III transmitter. Some viewers had trouble picking up KOLR's signal after its switch to digital-only broadcasts, a situation which continues to this day, even after engineers installed FM traps in-between the antenna and AMP.
On June 15, 2016, Nexstar announced that it has entered into an affiliation agreement with Katz Broadcasting for the Escape, Laff, Grit, and Bounce TV networks (the last one of which is owned by Bounce Media LLC, whose COO Jonathan Katz is president/CEO of Katz Broadcasting), bringing the four networks to 81 stations owned and/or operated by Nexstar, including KOLR and KOZL-TV. 
KOLR broadcasts the entire CBS network schedule; however, it splits Face the Nation into two half-hour blocks: the first half-hour airs in pattern on Sunday mornings, while the second half-hour is tape delayed to air on early Monday mornings before Up to the Minute. It is also one of the few CBS affiliates in the Central Time Zone that airs the soap opera The Young and the Restless at 11:30 a.m.; most prefer to air it at 11:00 a.m. as a lead-in to their midday newscasts (although KOLR schedules its midday newscasts before Y&R at 11:00 a.m.). Syndicated programs broadcast by KOLR include The Insider, Judge Judy, Inside Edition, and Entertainment Tonight. All of the programs mentioned are distributed by CBS' corporate cousin.
|This section needs expansion with: further information on the history of KOLR's news operation. You can help by adding to it. (October 2011)|
KOLR presently broadcasts 21 hours of locally produced newscasts each week (with 4½ hours on weekdays and a half-hour each on Saturdays and Sundays); unlike most CBS affiliates, KOLR does not broadcast early evening newscasts on weekends. During weather segments, the station uses live NOAA National Weather Service radar data from several regional sites, which is branded on-air as "Live Digital Doppler". KOLR also operates a news bureau in downtown Branson on West Main Street, which opened in June 2013.
KOLR had the longest-running evening anchor team in the Ozarks.[who?][when?] In March 2010, KOLR became the second television station in the Springfield market and the first Nexstar-owned duopoly (legal or virtual) to begin broadcasting its local newscasts in widescreen standard definition. In May 2011, channel 10 became the third station in the market to begin broadcasting its local newscasts in high definition; in both instances, the KSFX newscasts were included in the upgrade.
Notable former on-air staff
- Channel Lineup: Battlefield, Greene County & Springfield, MO
- "Archived copy" (PDF). Archived from the original (PDF) on 2013-08-29. Retrieved 2012-03-24.
- "Bounce TV, Grit, Escape, Laff Multicast Deal Covers 81 Stations, 54 Markets". Broadcasting & Cable. June 15, 2016. Retrieved June 16, 2016.