The station's studios are in the Stone Oak neighborhood in Far North San Antonio, and its transmitter site is off Santa Clara Road in Zuehl.

[6] However, in May 1923 the Department of Commerce, which regulated U.S. radio at this time, set aside a band of "Class B" frequencies that were reserved for stations that had quality equipment and programming.

[8] Over the next few years, regulators struggled to keep pace with a rapidly growing number of stations, and WOAI was moved to a variety of frequencies, beginning with 760 kHz in early 1925.

[12] On November 11, 1928, as part of the implementation of the Federal Radio Commission's General Order 40, WOAI was designated as the primary station assigned to the "clear channel" frequency of 1190 kHz.

In 1941, a major reallocation of the radio dial was prompted by the adoption of the North American Regional Broadcasting Agreement (NARBA).

As network programming moved from radio to television in the 1950s, WOAI 1200 switched to a full service middle of the road (MOR) music format, with frequent newscasts, farm reports and sports.

On June 13, 1975, San Antonio businessmen L. Lowry Mays and BJ "Red" McCombs acquired WOAI from Avco Broadcasting.

The station also began including sports play-by-play, especially after acquiring the radio contract for all San Antonio Spurs NBA basketball games.

Rush and Dr. Laura had already been airing in San Antonio on talk radio competitor 550 KTSA and were switched over to WOAI's line up.

In 2001, WOAI regained a TV sister station when Clear Channel acquired KMOL-TV, which had been WOAI-TV from its founding in 1949 until its sale in 1974.

In December 2002, KMOL-TV was granted permission from the Federal Communications Commission (FCC) to change its call sign back to WOAI-TV.