its broadcasting division into RKO General in 1957. WOR-FM simulcast its AM sister station's full service Talk/MOR format. In 1965, the Federal Communications Commission ordered AM stations in large markets to end continuous simulcasting on co-owned FM frequencies, a move made to spark development of FM stations as individual entities. On July 30, 1966, WOR-FM began running a freeform-based progressive rock format for most of its broadcast day, though the station continued to simulcast WOR radio's morning program Rambling with Gambling for a time afterwards. Under the leadership of legendary disc jockey Murray "the K" Kaufman, and featuring other notable disc jockeys such as Scott Muni and Rosko, the freeform format was the first of its kind in New York City radio. Later, Muni and Rosko departed for WNEW-FM, where the same progressive format would become a huge success. Initially, the Drake-Chenault-consulted, Top 40-formatted WOR-FM played new songs but in less of a rotation than WABC, which was then New York's big Top 40 station. Some of the notable early personalities included Bill Brown (who was a holdover from the rock format and would leave for then-rock station WCBS-FM in 1969); Joe McCoy (who would later become general manager of WCBS-FM); Johnny Donovan (who would go to WABC in 1972 and remain there until his 2015 retirement); Tommy Edwards (announcer), later the longtime midday personality on Chicago Top 40 giant WLS (AM); and Al Brady (who would program WABC in 1979), among others. As WXLO (1972–1981) On October 23, 1972, RKO General changed the station's call letters to WXLO, and starting in April 1974, it became known as "99X," a reference to the WXLO frequency's close proximity on the FM dial to 99 MHz. This was a version of what was known as the "Q" format, so named because it was modeled after station KCBQ in San Diego. The format featured about 15-20 currents, with a heavy emphasis on constant contests and promotions. In 1976, WXLO held a contest in which listeners had to guess the identity of six Beatles songs blended together in a sound montage. The Beatles montage was about three seconds in duration and contained one or two notes of each of the songs. They were "Hey Jude", "Got to Get You into My Life", "Day Tripper", "Come Together", "Do You Want to Know a Secret", and "Ticket to Ride". The station announced that the contest winner