KPJK

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.

During its early years, broadcasting on 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's low-power stations.

KCSM ceased regular programming on its analog signal, over UHF channel 60, on May 15, 2004, due to a costly rent increase for full-power transmitter space.

On May 3, 2005, KCSM received Special Temporary Authorization from the FCC to restore its analog signal at low power, operating on the campus of the College of San Mateo.

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."

On December 7, 2011, the San Mateo County Community College District announced plans to sell KCSM-TV, due to budgetary constraints as well as an operating deficit of $1 million.

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.

As of April 12, 2017[update], LocusPoint Networks, hired by the district to sell the station due to its $1 million annual losses, claim fiscal mismanagement and incompetence by school officials and administrators to fulfill their basic obligations to facilitate the sale properly.

[citation needed] On September 7, 2017, Sonoma County public television station KRCB (channel 22) announced that it would acquire KCSM-TV for $12 million.