WTMX (101.9 FM "The Mix") is a hot AC radio station in Chicago, Illinois.

[5] The station began broadcasting August 18, 1961, and held the call sign WRSV, which stood for "Radio Skokie Valley", its owner at the time.

[1][2][7] The station aired a full service format, with a wide variety of local programs along with classical music and standards.

[7] On December 10, 1970, the station's call sign was changed to WCLR, standing for "clear", a theme that was used heavily in its advertising.

[17][18][19] The station aired a Saturday night all-request oldies program in the 1980s, hosted by Peter Dean.

[35][36][37] The show drew consistently strong ratings, and the duo was inducted into the National Radio Hall of Fame in 2016.

[35][36][37][38] In April 2017, Kathy Hart left the program, and on September 7, 2017, Hubbard Radio announced that she would not be returning to the station.

[41] On December 16, 2020, after 22 years with WTMX, it was announced that Melissa McGurren had unexpectedly declined a contract extension and departed the station.