KPJK (channel 60) is anon-commercialindependent television station licensed toSan Mateo, California, United States, serving theSan Francisco Bay Area. Owned byNorthern California Public Media (not to be confused withNorthern California Public Broadcasting), it issister toPBS member stationKRCB (channel 22) andNPR member stationsKRCB-FM (104.9) andKRCG-FM (91.1).^[3] KPJK's studios are located on West Hillsdale Boulevard on the campus of theCollege of San Mateo in southwestern San Mateo, and its transmitter is located atopSutro Tower inSan Francisco.

KPJK operates 24 hours a day with programming coming fromAmerican Public Television and other independent producers. Previously, the station was owned by theCollege of San Mateo, and operated asKCSM-TV.

KCSM radio and KCSM-TV were originally established by theCollege of San Mateo (CSM) ascollege radio andstudent television station training facilities for radio and television broadcasters. Many well-known media personalities were educated at CSM, including tabloid television reporterSteve Wilson,San Francisco Giants announcerJon Miller andK101 on-air personality Jeff Serr.

Between 1964 and 1980, CSM offered a full range of courses in broadcasting and broadcast electronics, unusual for a community college; they were much more extensive than better known four-year university programs. The television station and its companion FM radio outlet were staffed and operated by students. This was discontinued in the 1980s, when the KCSM stations shifted to being operated by professional broadcasters.

KCSM-TV first signed on the air on October 12, 1964; the station was founded by Dr. Jacob H. Wiens, chair of the electronics department at the College of San Mateo.^[4] It was originally a member station ofNational Educational Television until 1970, when that service was succeeded by the Public Broadcasting Service (PBS). During its early years, broadcasting onUHF channel 14, it operated on campus from black and white studios with 13,800 watts of power from a transmitter at the college, comparable to today'slow-power stations. In 1979, KCSM reached a deal withSpanish International Network stationKDTV to begin operating from its full-power color facilities and moved to channel 60 atopSan Bruno Mountain's Radio Peak on March 5, 1979; KDTV in turn moved to channel 14.

KCSM ceased regular programming on its channel 60 analog signal on May 15, 2004, due to a costly rent increase for full-power transmitter space.^[5] The station ran a billboard for the next several days advising viewers that they would only operate its digital signal from then on, though it continued to be available throughcable. KCSM shut down its analog signal nine days later, on May 24. On May 3, 2005, KCSM receivedspecial temporary authority from theFederal Communications Commission (FCC) to restore its analog signal at low power, operating on the campus of theCollege of San Mateo.^[6] It briefly simulcast the Jazz TV (60.3) feed for two hours every evening, with the rest of the broadcast day being a simulcast of KCSM radio, but later offered only the simulcast (with relevant video "bulletin board" screens).

In March 2006, the FCC levied a $15,000 fine against KCSM for content in the documentary,The Blues: Godfathers and Sons, which the station had aired in March 2004.^[7] The series documented the birth and worldwide influence of the blues as a musical genre. One installment contained interviews with artists and others who expressed their feelings of oppression by the music industry, including the use of variations of the words "fuck" and "shit". The FCC determined the content to be "indecent". According to the FCC, "The gratuitous and repeated use of this language in a program that San Mateo aired at a time when children were expected to be in the audience is shocking."^[8] Within days of the decision, law firms from across the country offered their servicespro bono to fight the ruling. Because of the upswell of support, KCSM requested an extension of time to file its appeal.

KCSM dropped its membership with PBS in 2009,^[9] and became an independentpublic television station. KCSM-TV retained an affiliation withMHz Worldview for programming feeds on its seconddigital subchannel.

On December 7, 2011, theSan Mateo County Community College District announced plans to sell KCSM-TV, due to budgetary constraints as well as an operating deficit of $1 million. KCSM radio would continue operations as usual.^[10] All bids in response to the initial request for proposals to purchase the television station were rejected on October 24, 2012,^[11][12][13] and the district subsequently issued a second request for proposals. On May 15, 2013, the district approved an agreement withLocusPoint Networks, who would provide a $900,000 annual subsidy for up to four years and then split the proceeds of an auction of its spectrum allocation.^[14] The KCSM-TV spectrum was expected to be sold for upwards of $10 million to wireless communication companies.

On July 15, 2013, KCSM dropped most of the programming syndicated by public television distributors (with the exception of those airing as part of a discrete afternoon block), moving the MHz Worldview feed to its main channel. It brought back aforementioned programming on July 15, 2014.

As of April 12, 2017^[update], LocusPoint Networks, hired by the district to sell the station due to its $1 million annual losses, claimed fiscal mismanagement and incompetence by school officials and administrators to fulfill their basic obligations to facilitate the sale properly. In turn, the District counter-sued LocusPoint, a multi-station operator, and its partner,PricewaterhouseCoopers for failure to enter KCSM-TV into the2016 United States wireless spectrum auction. Nonetheless, the station continuously ran a deficit for many years, with viewers citing programming that was irrelevant and uninteresting for a typical public television station.^{[citation needed]}

On September 7, 2017,Sonoma County public television stationKRCB (channel 22) announced that it would acquire KCSM-TV for $12 million.^[15] The Rural California Broadcasting Corporation applied to change the station's call letters to KPJK;^[16] the call letters were chosen to honor John Kramer, a professor atSonoma State University who founded KRCB with his wife, Nancy Dobbs, in 1984.^[1] On October 24, LocusPoint Networks filed a lawsuit to block the sale to KRCB, claiming that the sale was not valid and violated its contract with KCSM-TV.^[17]

On July 31, 2018, KRCB took control of KCSM-TV and the call letters were changed to KPJK.^[1][18] Though KRCB sought to have KPJK rejoin PBS, its membership request was denied due to overlap with San Francisco's main PBS station,KQED (channel 9), as PBS has sought to eliminate duplication of programming within the samemarket. The station continued to simulcast KCSM radio on subchannel 60.5, under the branding "KCSM Jazz TV", even though the radio station was retained by the San Mateo County Community College District.^[1]

The station's digital signal ismultiplexed:

• Official website

• Television channels and stations established in 1964
• 1964 establishments in California
• Television stations in the San Francisco Bay Area
• Public television in the United States
• First Nations Experience affiliates

• Pages using gadget WikiMiniAtlas
• Articles with short description
• Short description is different from Wikidata
• Use mdy dates from November 2025
• Coordinates on Wikidata
• Articles using infobox television station
• Articles containing potentially dated statements from April 2017
• All articles containing potentially dated statements
• All articles with unsourced statements
• Articles with unsourced statements from January 2019