In the 1980s the station was co-owned by Pat Boone and played syndicated content, Big Band format along with locally produced talk shows such as "Call the Chief" hosted by the station manager Pat Michaels and produced by Randall Vorisek. Some of this content simultaneously aired on 95.1 FM KQLH which was KWRM's sister station. The Corona station had a small production studio that produced these and that also produced content solely for KQLH. Early 1980's broadcasters included station manager Pat Michaels, program director Marlon Pailey, John Drapo and Randall Vorisek who also engineered for the live Sunday broadcasts in Spanish.
This station became time-brokered in the mid-1990s.
In the mid-2000s, KWRM was often referred to as "The Worm" covering high-school football programs that featured future NCAA and NFL stars, as well as collegiate and professional baseball. The Worm also carried the USC Trojanscollege football for several seasons. In the Summer of 2005, KWRM began producing several sport talk shows, including the show "Controversy." Controversy was hosted by then Assistant Sports Director Roman Valdez, along with Aaron Toller and Jaeson Zinke. All three doubled as play-by-play announcers on KWRM-produced and broadcast games.
In April 2020 the station filed an STA with the FCC to go silent while it seeks a new transmitter tower location. Its long-time towers erected adjacent to the 91/15 freeways interchange had been removed. An FCC record dated April 14, 2020 said the station is "licensed and silent.".[2] KWRM resumed broadcasting on October 6, 2024 from a new transmitter tower south of the Chino Airport.[3]
NEW Transmitter Site 2024: From Ish Pisher Facebook Post: One of the most unique new AM stations in the entire United States.... KWRM 1370AM Radio (Corona-Los Angeles) just went on the air utilizing a 100 foot tower with a new umbrella-skirt design, the creation of Ben Dawson (Hatfield & Dawson) and Dr. Bobby Cox (Kintronic). Located close to an (Chino) airport, the 100 foot height was a perfect reason to use the skirt (shown where it connects by way of the circles) and has given the station outstanding bandwidth and enhanced coverage from it's 1.1 kw days/ 240 nights over the Los Angeles-San Bernardino-Riverside metros.
Three engineers working together to get things set on the air, left Ashley Wallen, chief project engineer, Steven Lockwood, President, Hatfield & Dawson; and Bob Burnham transmitter site construction engineer.