Infrared Spatial Interferometer

KTTV (channel 11) is a television station in Los Angeles, California, United States, serving as the West Coast flagship of the Fox network. It is owned and operated by the network's Fox Television Stations division alongside MyNetworkTV outlet KCOP-TV (channel 13). Both stations share studios at the Fox Television Center in West Los Angeles, while KTTV's transmitter is located atop Mount Wilson.

KCOP-TV (channel 13) is a television station in Los Angeles, California, United States, serving as the West Coast flagship of MyNetworkTV. It is owned and operated by Fox Television Stations alongside Fox outlet KTTV (channel 11). Both stations share studios at the Fox Television Center located in West Los Angeles, while KCOP-TV's transmitter is located atop Mount Wilson.

KNBC (channel 4) is a television station in Los Angeles, California, United States, serving as the West Coast flagship of the NBC network. It is owned and operated by the network's NBC Owned Television Stations division alongside Corona-licensed Telemundo outlet KVEA (channel 52). Both stations share studios at the Brokaw News Center in the northwest corner of the Universal Studios Hollywood lot off of Lankershim Boulevard in Universal City, while KNBC's transmitter is located on Mount Wilson.

KTBN-TV (channel 40) is a religious television station licensed to Santa Ana, California, United States, serving the Los Angeles area as the flagship station of the locally based Trinity Broadcasting Network (TBN). The station's offices are located at TBN's headquarters in nearby Tustin, and its transmitter is located atop Mount Wilson.

KSCI (channel 18) is a television station licensed to Long Beach, California, United States, serving the Los Angeles area. Owned by WRNN-TV Associates, the station airs programming from Shop LC. KSCI's studios are located on South Bundy Drive in West Los Angeles, and its transmitter is located atop Mount Harvard. KSCI served as a multicultural independent station until June 2021.

KKLA-FM (99.5 MHz, "99.5 KKLA") is a commercial radio station licensed to Los Angeles, California and serving the Greater Los Angeles area. The station is owned by the Salem Media Group and broadcasts a Christian talk and teaching format. The KKLA-FM studios are located in Glendale and the transmitter is located atop Mount Wilson.

KSCA (101.9 MHz, "LA Nueva 101.9") is a commercial FM radio station licensed to Glendale, California and broadcasting to the Greater Los Angeles area. KSCA is owned by TelevisaUnivision, and it airs a Regional Mexican radio format. The station has studios and offices on Center Drive (near Interstate 405) in West Los Angeles. KSCA's transmitter is on Mount Wilson.KSCA broadcasts in the HD Radio format. Its HD2 subchannel airs a simulcast of KTNQ, a Spanish-language news/talk format. Its HD3 subchannel broadcasts Iranian programming known as "Radio Vanak". Its HD4 subchannel airs a simulcast of sister station KRCD, a Spanish classic hits format. KSCA is also broadcast on a 90-watt booster station in Santa Clarita, California, KSCA-FM1 at 101.9 FM.

KLCS (channel 58) is a tertiary PBS member television station in Los Angeles, California, United States. Owned by the Los Angeles Unified School District (LAUSD), it is one of eight television stations in the U.S. that are operated by a local school system. KLCS' studios are located at the former Downtown Magnets High School campus on West Temple Street in downtown Los Angeles, and its transmitter is located atop Mount Wilson. KLCS is one of four PBS member stations in the Los Angeles market; the others are KVCR-DT (channel 24) in San Bernardino, which serves the Inland Empire; KOCE-TV (channel 50) in Huntington Beach; and KOCE-TV's sister station KCET (channel 28) in Los Angeles, which KOCE-TV replaced in 2011 as the city's primary PBS station. Since the spectrum auction in 2018, when KLCS sold its physical channel, it has been a guest on KCET's channel 28 signal. KLCS remains the fifth most-watched public television station in the country.

KPCC (89.3 FM) – branded LAist 89.3 – is a non-commercial educational radio station licensed to Pasadena, California, primarily serving Greater Los Angeles and the San Fernando Valley. KPCC also reaches much of Santa Barbara, Ventura County, Palm Springs and the Coachella Valley, and extends throughout Southern California with five low-power broadcast relay stations and three full-power repeaters. Owned by Pasadena City College and operated by the American Public Media Group via Southern California Public Radio, KPCC broadcasts a mix of public radio and news, and is an owned-and-operated station for American Public Media; in addition to serving as an affiliate for NPR and Public Radio Exchange; and is the radio home for Sandra Tsing Loh and Larry Mantle. Besides a standard analog transmission, KPCC broadcasts over two HD Radio channels, and is available online. The studios are located in Pasadena, while the station transmitter is on Mount Wilson. It is one of two full NPR members in the Los Angeles area; Santa Monica-based KCRW is the other.

KTLA (channel 5) is a television station in Los Angeles, California, United States, serving as the West Coast flagship of The CW Television Network. It is the largest directly owned property of the network's majority owner, Nexstar Media Group, and is the second-largest operated property after WPIX in New York City. KTLA's studios are located at the Sunset Bronson Studios on Sunset Boulevard in Hollywood, and its transmitter is located atop Mount Wilson. KTLA was the first commercially licensed television station in the western United States, having begun operations in January 1947. Although not as widespread in national carriage as its Chicago sister station WGN-TV, KTLA is available as a superstation via DirecTV and Dish Network (the latter service available only to grandfathered subscribers that had purchased its a la carte superstation tier before Dish halted sales of the package to new subscribers in September 2013), as well as on cable providers in select cities within the southwestern United States and throughout Canada. As of 2015, KTLA operates an internet-only news radio channel on iHeartRadio.

KLLI (93.9 MHz, "Cali 93.9") is an FM radio station in Los Angeles, California. Owned by the Meruelo Group, it broadcasts a bilingual Latin pop/rhythmic contemporary format. The station has studios located in Burbank, while its transmitter is based on Mount Wilson, and broadcasts in the HD Radio format.

KJLA (channel 57) is a television station licensed to Ventura, California, United States, serving the Los Angeles area as an affiliate of Visión Latina. The station is owned by Costa de Oro Media, LLC, a company run by Entravision Communications founder, CEO and chairman Walter Ulloa (whose brother, Ronald Ulloa, owns Rancho Palos Verdes–licensed ethnic independent station KXLA (channel 44) and Twentynine Palms–licensed KVMD (channel 31)). KJLA's studios are located on Corinth Avenue (near Interstate 405) in West Los Angeles, and its transmitter is located atop Mount Wilson. KJLA operates two low-power repeater stations: KLFA-LD (channel 25) in Santa Maria and KFUL-LD (channel 23) in San Luis Obispo (both are part of the Santa Barbara market). In addition to carrying Spanish-language programming on its main channel, the station also carries various networks broadcasting in Vietnamese and Mandarin on separate digital subchannels.