As KDYL, the station was best known for its nostalgia format, however it carried primarily conservative talk radio programming between 2000 and late 2001. Shows hosted by Michael Savage and Michael Medved appeared. In November 2001, Simmons Media changed the format of the station to its current sports programming. Along with the change in formatting, the call sign became the current KZNS. Prior to 2000, the then KDYL aired music much similar to what it currently airs on the 1060 kHz station who requested and was granted the KDYL call letters after they were released by the 1280 kHz station. Prior to Simmons acquisition of the station, the call letters were KWMS, and previous to that, KNAK. When Simmons acquired the station, the KDYL call letters were assigned to the Tooele, Utah station, then at 990 kHz, and the owner of that station, then Thomas Mathis, was compensated to release the KDYL call letters, changing the call of his station to KTLE. Prior to the Tooele, UT station having the call of KDYL, those call letters were assigned to the 1320 kHz Salt Lake City station, now known as KFNZ. Simmons wanted the KDYL call because of its name recognition in their initial target demographic.