Allentown was a great city for radio, in the shadow of two big markets, NYC and Philadelphia. It had two competitive AM Top 40 stations: 790 WAEB and 1320 WKAP. They had professional DJs, station vans, lots of promotions. 1230 WEEX Easton was also Top 40 for a time. The AM dial even had a progressive rock station, 1470 WSAN. I'm not sure how this format wound up in AM mono.
On FM, the market had four beautiful music stations at one point, each focused on its city of license: 99.9 in Easton, 100.7 and 104.1 in Allentown and 95.1 in Bethlehem. And 96.1 WLEV had an interesting automated AC format called "Hit Parade." It always played two songs back-to-back and its automation announcer would tell us the name and artist of the two songs when they concluded. The jingle singers would sing "Hit Parade!" Then either commercials would air or WLEV would play another two songs.
Eventually the Easton stations flipped. 1230 became easy listening and 99.9 became Top 40, using the live DJs who had formerly been on AM.