sentences:  Later in the 1970s the calls became WIOG (the calls resembled the number "106," as in its dial position) and the format shifted to AOR.In 1980, with the addition of some disco records to its AOR playlist, WIOG moved to a Top 40 format, eventually taking on the name "Hits 106" and becoming one of the most popular radio stations in the market.The 102.5 frequency was originally home to WNEM-FM (later WGER), a Beautiful Music station which was one of the pioneers of FM Stereo broadcasting in Michigan.