About NBC 4 LA

KNBC-TV, also known as Channel 4, is an NBC-affiliated television station in Los Angeles, California. It first went on the air as KNBH on January 16, 1949, and was the last of NBC's five original owned-and-operated stations to sign on. Unlike the other four stations, KNBH was the only one that did not have a sister radio station. It originally broadcast from the NBC Radio City Studios on Sunset Boulevard and Vine Street in Hollywood.

Over the years, the station has undergone several name and call letter changes. In October 1954, it changed its callsign to KRCA, and then again in November 1962 to KNBC when the network moved the KNBC identity from its San Francisco radio station (which became KNBR) to channel 4 in Los Angeles. This change coincided with the station's physical relocation to the network's color broadcast studio facility in suburban Burbank. In August 1986, the station officially modified its callsign to KNBC-TV, shortly after NBC and RCA were purchased by General Electric. The -TV suffix was dropped effective September 6, 1995.

In October 2007, NBCUniversal announced that it would put its Burbank studios up for sale and construct a new, all-digital facility near the Universal Studios Hollywood backlot in Universal City. As a result, KNBC, along with KVEA and NBC News' Los Angeles bureau, moved to a new digital facility on the Universal lot formerly occupied by Technicolor SA. The studio opened on February 1, 2014, and was later named the Brokaw News Center in honor of former KNBC and NBC News anchor/reporter Tom Brokaw.