Early history

WNVT first signed on March 1, 1972 on channel 53 as Public Broadcasting Service (PBS) member station "Northern Virginia Public TV".^[9] The station, licensed to Goldvein, was owned by the Northern Virginia Educational Television Association, which had been formed in 1965, and served the Virginia side of the Washington, D.C. television market. WNVT originally operated from Northern Virginia Community College.^[10] When the station was under construction, the school offered an associate of arts in broadcast engineering technology.

The Central Virginia Educational Television Corporation (later Commonwealth Public Broadcasting Corporation, now VPM Media Corporation) purchased the station in 1974.

As WNVT's transmitter was located in Independent Hill, Virginia, in rural Prince William County to the south of the Washington metropolitan area, reception in the more populated portions of Northern Virginia was difficult. Translator W14AA went on the air from Arlington in 1976 to increase coverage.^[11][12] WNVT began building WNVC in 1981, and received special permission to broadcast Congressional hearings over W14AA.^[13]

Fairfax-licensed WNVC signed on in May 1983 on channel 56, after being known as WIAH during the construction process. W14AA was sold in late 1981 and still broadcasts today as WMDO-CD. As the Washington market already had two full-service PBS stations in WETA-TV and WMPT, WNVC did not operate as a repeater of WNVT. Instead, it continued W14AA's coverage of Congress, along with State Department briefings, the Virginia General Assembly, county and local governments, school boards and fire districts. At the time, WNVC was billed as the only public television station independent of PBS in the nation.^[14]

On weekends in the late 1980s, WNVC had an unusual reputation for sports coverage. The station showed as many syndicated college basketball games as possible, including from the NCAA Division I men's basketball tournament in the era before every game was on national television. As there was generally only demand for Big East and Atlantic Coast Conference games in Washington, WNVC picked up games from major and minor conferences in other regions for relatively low cost. Its noncommercial status in turn freed it from the prospect of having to sell advertising for games that were likely to draw microscopic audiences. Director of development Mike Baker went on air during commercial breaks and halftimes with live appeals for donations. This stream of programming began to dry up in the early 1990s, when CBS and ESPN began national coverage of the entire tournament and increased coverage of regular-season games.^[15][16]

After a week of foreign films aired during a 1993 pledge drive drew unexpected interest and inspired a new course for the Washington-area outlet,^[17] WNVC rebranded as "World View TV" on September 1, 1994, carrying international television programming in multiple languages and local ethnic programming on the weekends. At launch, the station's most popular program was the Russian state newscast Vremya, shown live at 9 p.m. Moscow Time (1 p.m. Eastern);^[18] it also aired Brazilian and Italian soccer, an in-studio celebration of Diwali in 1997, and some local programming, including a Spanish-language health call-in program.^[17] WNVT engaged in discussions throughout the 1990s to move its studios to Mary Washington College in Stafford County, but the move was scuttled in 1999 by rising costs, which had doubled in just two years.^[19]

WNVT continued as a standard PBS member station through 1999, though it did not air the network's evening programming.^[17][20][21] Beginning January 1, 2000, WNVT disaffiliated from PBS, reverting to an educational independent station during the day. WNVT also began relaying Canadian cable-television channel MuchMusic in afternoons and evenings.^[22]

MHz Networks

In 2001, the two stations became known as MHz Networks, with WNVC becoming MHz1 and WNVT becoming MHz2. WNVT's daily educational programming was branded as "MHz Learn", and it continued relaying MuchMusic in the evenings.^[23]

Subchannels

The stations' digital signals are multiplexed:

Spectrum reallocation auction; relocation

CPBC announced on March 31, 2017 that it had sold the licenses of WNVC and WNVT in the Federal Communications Commission's ongoing spectrum reallocation auction for $182 million.^[34] CPBC did not see a need to continue running the two over-the-air signals, as the Washington market is already served by public television stations WETA-TV, WHUT-TV, and WMPT, and it would prefer to focus on local and PBS programming.^[35]

Both stations indicated they would continue over-the-air operations by sharing the channel of another station. CPBC stated it would attempt to find an in-market sharing partner, but was unable to do so, instead choosing to share with its own WCVE-TV in Richmond and its Charlottesville satellite WHTJ.^[1][5][36]

The two stations suspended operations from their existing transmitter sites in Independent Hill (WNVT) and Merrifield (WNVC) at midnight on March 31, 2018 and immediately moved to the transmitters of their respective sharing partners. The stations' cities of license were required to remain in the Washington market and moved to Spotsylvania Courthouse and Culpeper, respectively.^[3][7] Responsibility for programming the stations reverted to CPBC.

MHz Networks announced that it would move its twelve streams of programming to local cable operators.^[37] However, cable providers were not willing to carry the channels without the force of must-carry rules that apply to over-the-air stations, and MHz was unable to reach a deal to lease subchannels from another station. Consequently, MHz Worldview became unavailable over-the-air in the broadcaster's home market.^[38] The company has since announced it would shut down its over-the-air service on March 1, 2020.^[39] On February 3, WNVT and WNVC converted to being member stations of World Channel, a news/documentary network that is also aired on most PBS member stations.^[40]