 As WBYG, the station began airing an adult contemporary format.In 1979, the station's transmitter was moved to Peotone, Illinois, along the Kankakee County/Will County border, and its ERP and HAAT were increased to 50kw and 500 feet respectively.By 1979, WBYG would begin airing an album-oriented rock format, with top 40 music from 6 to 9 AM.