In the late 1960's, WSID-FM changed call letters to WLPL and dropping the Top 40 Soul format went straight Top 40. Does anyone besides me have memories of that station? Where I lived at the time (in Delaware) my house favored Baltimore stations over Philadelphia. In those days, there was usually a Baltimore/Philly adjacency (sp) on every FM frequency. WLPL was next to WIFI, so my radios got WLPL better.