By 1979, three FM stations owned by CBS had begun playing disco music.
In the course of 1981, all of CBS's FM stations, except for WCBS-FM and their FM station in San Francisco, adopted a CHR format known as "Hot Hits".
This automated format was syndicated to CBS stations across the country and to AFR (American Forces Radio).
On August 27, 1967, the AM station had to launch its news format (which was not full-time until 1972) on WCBS-FM because a small airplane had crashed into the AM transmitter a few hours earlier.
WCBS-FM also played a moderate amount of adult standards from the rock era.