 Co-owned with KBAY, its studios are located in South San Jose just off US 101 on Hellyer Ave, and the transmitter is based from a site in Santa Teresa County Park.KEZR debuted in 1967 as KPLX, under the ownership of Bay Area broadcasting legend Les Malloy, from studios in the Hotel Sainte Claire in downtown San Jose.In December 1971, Malloy sold the station to PSA Broadcasting, a subsidiary of San Diego-based Pacific Southwest Airlines, for $330,000.