KCNZ-CD (channel 28) is a low-power, Class A television station licensed to San Francisco, California, United States, serving the San Francisco Bay Area. Owned by CNZ Communications, LLC, it is sister to Estrella TV affiliate KOFY-TV (channel 20) and low-power station KMPX-LD (channel 18). The three stations share transmitter facilities atop San Bruno Mountain.
History
KCNZ-CD was founded on April 25, 1986, with an original construction permit granted to National Innovative Programming Network. Initially assigned to Palo Alto and Los Altos, California, and given callsign K30BI, the station's construction permit was modified and extended several times. In August 1990, Channel America acquired the station, but sold it again in July 1992 to Polar Broadcasting, who finally licensed the station on May 3, 1994. By this time, the station had been assigned to San Francisco, Oakland and San Jose.
According to listings from 1997, K30BI (referred to as "KBI-TV") was formerly affiliated with The Box, a 24-hour-a-day music network, and aired classic television during the day.[1]