KYZS
An application for a construction permit was filed to operate at 1070 kHz, with 50 watts of power, from a transmission site at Fisher & 5th Street in Goldthwaite, Texas.
The facility was again modified and requested an amendment of the license on December 6, 1928, moving the transmission site to Brownwood and the broadcast studio location to Howard Payne College.
This facility is considered the oldest continuously licensed operation in East Texas, preceding both KOCA in Kilgore (1936), and KFRO in Longview (1935).
On October 9, 1944, East Texas Broadcasting would procure new stewardship as James G. & Minnie B. Ulmer acquired controlling interest in the corporation, through a purchase of stock from majority partner J.G.
Buford Broadcasting also owned and operated television station KLTV in Tyler, as the first channel to sign on in Tyler-Longview.
Several changes to the 1490 facility accompanied the new ownership, including operating the transmission site remotely from a new studio location at Kilgore Highway and Farm to Market Road 1803, requested on June 1, 1954.
The changes were approved on September 8, 1954, separating the transmission site and studio location for the first time since the move to Tyler 23 years earlier.
Litteral Enterprises would only briefly own KGKB, selling the facility to Oil Center Broadcasting Company on June 15, 1959.
On March 21, 1960, Harry O'Connor would request to move the control point and studios for KGKB from the Kilgore Highway location to 116 South Broadway in Tyler, which was granted on April 8.
O'Connor's stewardship of KGKB would ultimately prove to be a literal dark period for the facility, with the Commission deferring the license renewal pending further consideration on July 25, 1962.
KDOK Broadcasting Company would bring 1490 back to life with the Top 40 format and calls, while also moving the transmission site and studios to the current Loop 323 location, and increased the overall height of the single tower.
On New Years Day 1990, the heritage KDOK Top 40/Contemporary Hit Radio format was finally dropped from 1490, reformatting with Big Band and Adult Standards music.
Chalk Hill owns and operates Soft Adult Contemporary 100.3 KZQX and Classic hits 1240 KDOK in the Longview portion of the measured Tyler-Longview market.
