|WNVT: Goldvein, Virginia
WNVC: Fairfax, Virginia
|Slogan||Programming for Globally-Minded People|
WNVT: 30 (UHF)
WNVC: 24 (UHF)
|Owner||Commonwealth Public Broadcasting Corporation|
|First air date||WNVT: March 1, 1972
WNVC: June 6, 1981
|Call letters' meaning||Northern Virginia Television
Northern Virginia College
|Former channel number(s)||Analog:
WNVT: 53 (UHF, 1972–2003)
WNVC: 56 (UHF, 1981–2008)
WNVC: 57 (UHF)
|Former affiliations||PBS (1972–2001)|
|Transmitter power||WNVT: 160 kW
WNVC: 160 kW
|Height||WNVT: 229 m
WNVC: 221 m
|Facility ID||WNVT: 10019
MHz Networks is a Northern Virginia based independent, non-commercial educational broadcaster operated by Commonwealth Public Broadcasting Corporation that covers the city of Washington, DC, and the surrounding area. The legal broadcast callsigns for the two stations of MHz Networks are WNVC (channel 24) and WNVT (channel 30). Rebranded as MHz Networks, WNVC is licensed to Fairfax, Virginia with studios in Falls Church, Virginia  and WNVT is licensed in Goldvein, Virginia, and shares TV studio facilities in Falls Church.
WNVT first signed on March 1, 1972 on Channel 53 as a public broadcaster independent of Public Broadcasting Service (PBS). On June 6, 1981 Channel 56 signed on as a similar station (as WIAH) and in 1982, changed its call letters to WNVC. Since channel 56 signed on, the two stations were operated from the same Northern Virginia studios, and were run as sister stations. The WNVT studios were originally at Northern Virginia Community College. When the station was under construction, the school offered an associate of arts in broadcast engineering technology. Prior to WNVT, channel 53 had a brief experimental transmission from somewhere in downtown Washington, D.C.
In 2001, the two stations became known as MHz Networks, with WNVC becoming MHz and WNVT becoming MHz2. In 2003, WNVT became digital-only on channel 30. On September 1, 2008, WNVC ceased broadcasting in analog permanently and took the digital broadcast silent to perform technical modifications. WNVC has a construction permit (now on-air) to relocate its digital signal to channel 24, after WUTB in Baltimore vacated its analog signal on June 12, 2009.
Like all of the DC-area Mobile DTV broadcasters, WNVC-TV commenced ATSC-M/H broadcasting on February 27, 2011. WNVC-TV also has two Mobile DTV feeds, one of subchannel 30.1 (MHz Worldview), labelled "MHz 1", and a feed of sister station WNVT's 30.7 (France 24, showing up as 30.2), labelled "MHz 7", broadcasting at 3.67 Mbit/s.
- MHz1 (30.1): MHz Dc (in English or with English subtitles)
- MHz2 (30.2): NHK World (in Japanese and English)
- MHz3 (30.3): CCTV News (in English)
- MHz4 (30.4): RT (in English)
- MHz5 (30.5): Blue Ocean Network(from China, in English)
- MHz6 (30.6): CCTV Documentary (in English and with English subtitles if possible)
- MHz7 (30.7): France 24 (in English)
- MHz8 (30.8): RT en Español (in Spanish)
- MHz9 (30.9): Arirang (in English)
- MHz10 (30.10): Ethiopian Television (in Amharic)
- MHZ 11 (30.11): VTV4 (in Vietnamese)
- MHZ 12 (30.12): MHz WorldView
Services formerly offered
These digital subchannels are no longer offered:
- MHz3 (30.3): Metro Chinese Network; replaced by CCTV News.
- MHz5 (57.3): Beste van Vlaanderen en Nederland (in Dutch and English); replaced by Al Jazeera English.
- MHz8 (57.4): Macroview TV ; replaced by Nigerian Television Authority.
- MHz8 (30.8): Nigerian Television Authority ; replaced by Ethiopian Television.
- MHz8 (30.8): Ethiopian Television ; replaced by RTV Spanish and later returned to MHz10
- MHz6 (30.6): SABC News International ; replaced by MHz Native
- MHz6 (30.6): MHz Native'; replaced by CCTV Documentary
- MHz9 (30.9): VTV4 (in Vietnamese); replaced by Arirang; moved to a 12-hour slot on MHz6
- MHz10 (30.10): Euronews (in English); replaced by Ethiopian Television; moved to a 12-hour slot on MHz6
- MHz5 (30.5): Al-Jazeera English; replaced by Blue Oceans Network on August 20, 2013 when Al Jazeera English was pulled from US distribution with the inception of Al Jazeera America.
- MHz Worldview
- The Shortie Awards
- Powerhouse (TV series) (1982 PBS and Nickelodeon's kids and teens series produced by MHz's predecessor, Northern Virginia ETV)
- Inside/Out (1972–73 series distributed by National Instructional Television, some episodes produced by WNVT/Northern Virginia ETV)
- Dickson, Glen (2009-07-13). "Special Report: Mobile DTV Heats Up". Broadcasting & Cable. Retrieved 2009-07-15.
- "Broadcast in DC". MHz Networks.
- Official website
- Query the FCC's TV station database for WNVC
- Query the FCC's TV station database for WNVT
- BIAfn's Media Web Database -- Information on WNVC-TV
- BIAfn's Media Web Database -- Information on WNVT-TV