 Channel 20 returned to the air as KEMO, eventually becoming today's KOFY-TV.Originally at 104.5 in the 1950s, KBAY 100.3 FM, became the market leader in San Jose and had a very strong listening audience in both the San Jose and San Francisco markets throughout the 1970s and 1980s.Its easy listening format gave way to light jazz instrumentals and by the early 1990s, pop music was introduced.