KGRB (defunct)

KGRB (900 AM) was a 500-watt radio station in West Covina, California. The station featured Big Band music & Swing music from the original 78 rpm recordings. Among the notable disc jockeys over the years were Lyman Jay (Jaroch), Bob Mayfield, Bob Stone, and Tom Murphy.

The station was put on the air by former KTLA-Channel 5 engineer Robert Burdette and his wife Gloria on September 25, 1963. Indeed, the station's call letters were derived from Gloria Burdette's initials, "Gloria R. Burdette." In 1957 Burdette bought an FM station in West Covina and named it KBOB after himself. It was a sister station to KGRB. The two stations referenced themselves as "KGRB, KBOB, The Twin Voices of The (San Gabriel) Valley."

In 1994, after Burdette suffered a stroke, KGRB was put into a conservatorship. Steve Ray (who had worked at KCLU, KLIT, KMPC, and KRCI) was brought in to manage the stations. He made KGRB an NBC affiliate, renaming it "AM 90 NBC", and was in the process of acquiring the KNBC-AM call letters when the conservators sold KGRB to a Hispanic broadcast group. Today it is owned by Multicultural Broadcasting and is known as KALI, "Radio Zion."