Complex sentence: On April 15,1985 WTCB signed on as B106 an almost overnight, the station became a huge ratings success, with a superior market sound and a signal that covered 2/3rd's of South Carolina.
Split into simpler sentences: On April 15,1985 WTCB signed on as B106. Almost overnight, the station became a huge ratings success, with a superior market sound and a signal that covered 2/3rd's of South Carolina.