[2] It simulcast the full service format of its AM sister station KSMA (1240 AM), airing a mix of news, sports, and middle of the road music.

[6] Upon the change in ownership, Bayliss ended KSMA-FM's simulcast of KSMA after two decades and programmed it separately as a beautiful music outlet.

On March 1, 1989, the transmitters for KSNI-FM and three other stations in Santa Maria were knocked off the air due to acts of vandalism.

[15] In July 2007, KSNI-FM was one of 16 stations in California and Arizona which Clear Channel sold to El Dorado Broadcasters for $40 million.

[16] During the week of January 18, 2010, a storm in the Santa Maria area triggered a power outage that knocked KSNI-FM and several other stations off the air.