Complex sentence: The station initially played classical music, for several years being part of a network which originated at WQXR in New York City, however by the late 1960s this became a losing proposition and in 1970 the station switched to a Top 40/Oldies Rock format with live DJs.
Split into simpler sentences: The station initially played classical music, for several years being part of a network which originated at WQXR in New York City. However by the late 1960s this became a losing proposition and in 1970 the station switched to a Top 40/Oldies Rock format with live DJs.