This isn't just the start of a format on a radio station but most radio historians say it's the start of a format...period. This is an aircheck of Scott Muni's first day on WOR-FM in NYC from October 1966. WOR-FM was the first progressive station in NYC which many said gave the format the recognition it needed. This was Muni's return to radio after leaving WABC during the Beatlemania days. The legend is that Louis Armstrong's record Hello Dolly hit #1 on the playlist and that meant WABC was to play it once an hour. Muni wanted that song off of his show. It was Muni who wound up leaving WABC.
The progressive format actually started a few months earlier on WOR-FM but due to a DJ strike it went without DJ's until this day.
This aircheck features Muni playing and singing the praises of the music not being heard anywhere else. He previews the other new DJ's still to come later that day and night including Murray The K and Roscoe. The middle of the aircheck feature midday DJ Johnny Michaels and then it's back to Muni for his afternoon show. There are some commercials still complete on this aircheck. The fantastic part is the aircheck itself. There are so few examples of this era of radio history out there, especially at a length like this.
As a special bonus you'll also get a short clip of Muni with Dan Ingram on the air on WABC in 1964 at the Warwick Hotel with the Beatles as 10,000 kids listening on their transitor radios sing along to some WABC jingles.