100.7 FM adopted its current format and callsign, WZLX, in mid-October 1985. Station owners First Media Corporation hired Gary Guthrie as the architect of its classic hits format, a format aimed at people who experienced adolescence in either the 1960s and 1970s and enjoyed the music of those eras, but did not care for the then-current heavy metal or top 40 'hot hits' of the 1980s. These were people whose mindset was getting too old for AOR and top 40, but were too young for or not interested in oldies. WZLX is considered one of the classic rock format's earliest success stories as reflected by the station's 19th to 2nd place climb in the Adults 25-54 demographic in its first ratings period.