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Media

Published within the city are the daily newspaper, The San Diego Union-Tribune and its online portal of the same name, and the alternative newsweeklies, the San Diego CityBeat and San Diego Reader. Times of San Diego is a free online newspaper covering news in the metropolitan area. Voice of San Diego is a non-profit online news outlet covering government, politics, education, neighborhoods, and the arts. The San Diego Daily Transcript is a business-oriented online newspaper.

San Diego is also the headquarters of the national far-right cable TV channel One America News Network (OANN), which was founded in 2013 and is owned by Herring Networks. The network gained notoriety for being ardent supporters of Donald Trump and providing a platform for right-wing conspiracy theories.

San Diego led U.S. local markets with 69.6 percent broadband penetration in 2004 according to Nielsen//NetRatings.

San Diego's first television station was KFMB, which began broadcasting on May 16, 1949. Since the Federal Communications Commission (FCC) licensed seven television stations in Los Angeles, two VHF channels were available for San Diego because of its relative proximity to the larger city. In 1952, however, the FCC began licensing UHF channels, making it possible for cities such as San Diego to acquire more stations. Stations based in Mexico (with ITU prefixes of XE and XH) also serve the San Diego market. Television stations today include XHCPDE 11 (Canal Once (Mexico)), XETV 6 (Canal 5 / Nueve), KFMB 8 (CBS, with The CW / MNTV on DT2), KGTV 10 (ABC), XEWT 12 (Televisa Regional), KPBS 15 (PBS), KBNT-CD 17 (Univision), XHTIT-TDT 21 (Azteca 7), XHJK-TDT 1 (Azteca Uno), XHAS 33 (Canal 66), K35DG-D 35 (UCSD-TV), KDTF-LD 36 (Unimás), KNSD 39 (NBC), KUAN-LD 48 (Telemundo), KSEX-CD 42 (Infomercials), XHBJ-TDT 45 (Canal 6 (Mexico)), XHDTV 49 (Milenio Televisión), KUSI 51 (Independent), XHUAA-TDT 19 (Canal de las Estrellas), and KSWB-TV 69 (Fox). San Diego has an 80.6 percent cable penetration rate.

Due to the ratio of U.S. and Mexican-licensed stations, San Diego is the largest media market in the United States that is legally unable to support a television station duopoly between two full-power stations under FCC regulations, which disallow duopolies in metropolitan areas with fewer than nine full-power television stations and require that there would be eight unique station owners that remain once a duopoly is formed (there are only seven full-power stations on the California side of the San Diego-Tijuana market). Though the E. W. Scripps Company owns KGTV and KZSD-LP, they are not considered a duopoly under the FCC's legal definition as common ownership between full-power and low-power television stations in the same market is permitted regardless of the number of stations licensed to the area. As a whole, the Mexico side of the San Diego-Tijuana market has two duopolies and one triopoly (Entravision Communications owns both XHAS-TV and XHDTV-TV, Azteca owns XHJK-TV and XHTIT-TV, and Grupo Televisa owns XHUAA-TV and XEWT-TV along with being the license holder for XETV-TV, which was formerly managed by California-based subsidiary Bay City Television).

San Diego's television market is limited to only San Diego County. The Imperial Valley, including El Centro, is in the Yuma, Arizona television market while neighboring Orange and Riverside counties are part of the Los Angeles market. (Sometimes, in the past, a missing network affiliate in the Imperial Valley would be available on cable TV from San Diego.) As a result, San Diego is the largest single-county media market in the United States.

The radio stations in San Diego include nationwide broadcaster iHeartMedia, Audacy, Inc., Local Media San Diego, and many other smaller stations and networks. Stations include: KOGO AM 600, KGB AM 760, KCEO AM 1000, KCBQ AM 1170, K-Praise, KLSD AM 1360, KFSD 1450 AM, KPBS-FM 89.5, Channel 933, Star 94.1, FM 94/9, FM News and Talk 95.7, Q96 96.1, KyXy 96.5, Free Radio San Diego (AKA Pirate Radio San Diego) 96.9FM FRSD, KWFN 97.3, KXSN 98.1, Big-FM 100.7, 101.5 KGB-FM, KLVJ 102.1, KSON 103.7, Rock 105.3, and another Pirate Radio station at 106.9FM, as well as a number of local Spanish-language radio stations.