KLJB (channel 18) is a television station licensed to Davenport, Iowa, United States, serving as the Fox affiliate for the Quad Cities area.

The three stations share studios in the Telco Building on 18th Street in downtown Rock Island; KLJB's transmitter is located near Orion, Illinois.

KLJB began broadcasting in 1985 as the first independent station in the Quad Cities area, owned by a group of local and out-of-area partners.

[4] Davenport Communications, Limited Partnership, was granted the construction permit in November after the five applicants entered into a settlement agreement;[5] partners in the station included brothers Ed and Lee Hanna of New York, former Rock Island mayor James R. Davis, and Gary Brandt, who served as general manager.

[6] In June 1984, the board of supervisors in Henry County, Illinois, approved the rezoning of land at Orion for the station's transmitter; a Christmas launch was announced at that time,[7] but the timeline had slipped to midyear by November.

[12] The station was a charter affiliate of Fox when it launched in October 1986, but by early 1988, Brandt was expressing serious distaste with the network's constantly shifting programming.

[13][14] Meanwhile, in order to get out from expensive programming leases that had been made at the station's launch in 1985—some for titles KLJB-TV never aired—Davenport Communications filed for Chapter 11 bankruptcy protection.

[18] In December 1990, Davenport Communications emerged from bankruptcy and debtor-in-possession status, having met the terms of a repayment schedule that saw $250,000 to $350,000 in payments on what was originally a $2 million debt.

[20] Grant extended the station's reach in 1996 by buying and restoring to air KJMH (channel 26) in Burlington, Iowa, which began to simulcast KLJB.

[26][27] On November 6, 2013, Irving, Texas–based Nexstar Broadcasting Group announced that it would purchase the Grant stations, including KLJB and KGCW, for $87.5 million.

[30] In November 2014, while Nexstar was still waiting for the completion of its sale of KLJB to Marshall Broadcasting, there was speculation by other local media that KGCW might move to a WHBF subchannel.

[34] When Nexstar acquired Tribune Media in 2019, it spun off ABC affiliate WQAD-TV (channel 8) to Tegna Inc.[35][36] On December 3, 2019, Marshall Broadcasting Group filed for Chapter 11 bankruptcy protection.

[44] EBI was supplanted by Independent News Network (INN), which specialized in the outsourced production of television newscasts for small-market local stations from its Tremont Avenue studios.

[52] A two-hour morning news extension to air from 7 to 9 a.m.—the only such local program in the market—was added in September 2017, by which time the late newscast had expanded to one hour.