The station began broadcasting on August 15, 1964, as WOLI, and broadcast at 98.3 MHz.[2][3][4] WOLI aired a MOR format.[3] By 1975, the station had begun airing a rock/top 40 format.[7] In 1975, the station's frequency was changed to 95.3 MHz, and in September 1976, its call sign was changed to WRKX.[4]
By 1977, the station had begun airing a country music format.[8] The station continued airing a country music format into the 1980s.[9] By 1985, the station had begun airing an adult contemporary format.[10] In August 1991, the station's format was changed to classic rock.[11]
In early 1993, the station's format was changed to hot AC.[12] The station was branded "K95.3", "The River".[13][14] By 2010, the station's format had changed to adult hits, as "95.3 SAM FM",[15][16] carrying Westwood One's S.A.M.: Simply About Music programming until the discontinuation of the network in August 2015, at which point the station became "95.3 Jack FM".[17]
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