In April 1953, the station signed on the air as KMLW in Marlin, Texas.[3] Its call sign indicated that it served both MarLin and Waco, the larger city nearby. It was only powered at 250 watts and was a daytimer, required to sign-off at night to avoid interfering with other, more powerful stations on 1010 AM. It was owned by KMLW, Inc. and had studios on the Marlin-Waco Highway.
The station was acquired by American Broadcasting of Texas in 1986.[4] American Broadcasting switched the format to Christian talk and teaching, now broadcasting 24 hours a day.