WZLX (100.7 FM, Boston) is a classic rock radio station in the Boston, Massachusetts market. WZLX was one of the first classic rock FM stations in America. What is now WZLX was originally WCOP-FM, notable for being one of the first FM stations to break simulcasting with its AM partner. WCOP-FM's separate programming was initially classical music and was one of the first FM stations in the region to (briefly) broadcast in FM stereo (the station would resume stereo programming in the early 1970s). In 1965, WCOP (AM) had become Boston's affiliate for the NBC Radio Network, and WCOP-FM would often simulcast the hourly NBC Radio newscasts.
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