A Philadelphia sports radio staple died at 77 following a battle with cancer.  Harry Donahue, a longtime sports and morning drive anchor at KYW Newsradio, died Wednesday, the station’s parent company, Audacy, announced .  Donahue had a 35-year career at the station, which began in 1974 as a freelance reporter before he started work as an anchor in 1979.  Across the course of his career, Donahue served as the play-by-play voice for the USFL’s Philadelphia Stars in the 1980s, and he was the TV