FredLeonard said:
TheBigA said:
But it wasn't "unique" programming. It was the exact same programming available on AM. Just with better fidelity.
Wrong! Oldies (all oldies, all the time). Progressive Rock (aka Underground Rock). Jazz. Classical. AM was Top 40, MOR, Full Service, Country, Ethnic/Foreign Language, Religion or R&B. Occasionally some blocks of other genres late at night or on weekends but they were not widely available.
Jazz, for the most part, was a format that predated the mandate to end simulcasting at the start of 1967. It was one of the formats that came from the time around the early 60's boom in new, independent FM licenses.
Progressive rock had a very short lifespan, save in a few large markets (KMET in LA lasted till 1987, San Francisco and Chicago had longer lived progressive rockers than most) as the free-form music programming got blown away in the '72-'73 period by Abrams' AOR "Superstars" approach with near-Top 40 formatics and rotations.
Oldies did not gain a real foothold and momentum until the 70's. Early "gold" stations, in many cases, did not last. Even pioneer KRTH became a modified AC, playing "tomorrow's gold" as well as hits of the past.
Foreign language was programmed on FM well prior to 1967; in quite a few places such as Cleveland, Detroit and Chicago, there were one or more mult-ethnic FMs running a variety of Italian and Eastern European language shows. In fact, low cost FMs were the preferred way to get ethnic programming on the air in many markets. Even Richard Eaton's Washington, D.C., FM was doing all Spanish in the late 60's.
The dominant format, though, was Beautiful Music. It was an offshoot of existing "Good Music" formats on already established AMs like WPAT in New York or WDOK in Cleveland or WVCG in Miami in many cases and, while modernized by Shulke, Stout, Taylor and others, was simply an old format with better format mechanics and less commercials.
Beautiful Music stations were at the top of the ratings in most markets from the late 60's well into the 80's, with some markets having several of these in the top 5!
Which brings me to an overwhelming factor in the move to FM by audiences: commercials. Most FMs in the post-67 era set very low commercial limits even when they could sell more inventory. The contemporary formats tended to have 8 minutes an hour as a limit, with 10 being the ceiling for the more "greedy". While AMs were doing the 18-minute thing, the FMs had less than half the commercials and were irresistible to listeners.