In the 1970s , KLIV 's primary genre shifted with emerging musical trends . The decade began with KLIV emphasizing hard rock before returning to a general top 40 format by 1972 . KLIV music director Ralph Koal announced that KLIV would take on a format he called " Top 40 with a disco emphasis " in early 1979 . This move made KLIV the first San Jose station to accommodate more disco . As disco became less popular later in the year , KLIV changed to an album-oriented rock format dubbed " Rock 16 " on October 25 , 1979
disco became less popular
Disco Demolition Night
KLIV