WXPT's longtime sister station at 950 AM to a local group, which turned it into KTNF, a progressive talk station. Jack FM At 9 a.m. on April 21, 2005, after a few hours of stunting, "Mix 104.1" flipped to "Jack FM." The first song on "Jack" was "Get The Party Started" by P!nk. On May 10, 2005, three weeks after the format change, the call letters were officially changed to KZJK. KZJK has a larger playlist compared to other radio stations. While many stations commonly have 200-400 songs in rotation, the Jack format has three or four times that number. On February 2, 2017, CBS Radio announced it would merge with Entercom. The merger was approved on November 9, 2017, and was consummated on the 17th. KZJK-HD2 KZJK broadcasts an HD Radio signal. Its HD2 signal originally carried a smooth jazz format, but on December 26, 2011, fellow sister station WLTE's former "Lite FM" adult contemporary format moved to KZJK-HD2 after WLTE flipped to country music as KMNB. References Amy Carlson Gustafson (April 22, 2005). Goodbye, '80s; hello, Jack. St. Paul Pioneer Press. Northpine - Upper Midwest Broadcasting External links Radiotapes.com Featuring historic airchecks of various formats heard in the past on 104.1 FM including KFMX-FM Disco, KJJO-FM, KRSI-FM along with other Twin Cities radio station airchecks dating back to 1924 Rick Burnett's TwinCitiesRadioAirchecks.com More historical recording of 104.1 FM including KRSI and KFMX, and other Twin Cities radio stations. Adult hits radio stations in the United States Jack FM stations Nationwide Communications Radio stations established in 1962 Radio stations in Minnesota Audacy, Inc. radio stations