The two stations share studios on Wisconsin Avenue in the Glover Park section of Washington; WDVM-TV's transmitter is located on Fairview Mountain, west of Clear Spring, Maryland.

WHAG-TV's original analog transmitter was to be on top of the Hagerstown Motor Inn (now the Alexander House) but was rejected due to structural incompatibility.

[9] Prior to 1996, the Federal Communications Commission (FCC) used Arbitron's Area of Dominant Influence (ADI) system to assign television stations to a media market, principally to determine cable carriage rights and applicable regulations and fees.

[10] In practice it was only seen on cable west of the Blue Ridge, though Dish Network added it to its package of Washington-market local stations.

The Herald-Mail first reported that NBC was declining to renew its affiliation with WHAG on February 19, 2016, and a network spokesperson confirmed this with a terse, one-sentence email to the paper.

On December 3, 2018, Nexstar announced it would acquire the assets of Chicago-based Tribune Media—which has owned Washington-based CW affiliate WDCW (channel 50) since 1999—for $6.4 billion in cash and debt.

In December 2023, Nexstar applied to the FCC to move WDVM-TV's transmitter site to a tower at Blue Mountain near Front Royal, Virginia, along with a power increase to 1,000 kW; the move was to substantially increase over-the-air coverage of Washington and suburban northern Virginia while still covering the Hagerstown area.

[3][4] After the FCC requested several rounds of reports and technical changes to minimize the population in rural Maryland and Pennsylvania that would lose what the commission considers adequate local broadcast television coverage (within the Longley-Rice noise-limited contour of five full-power or Class A stations), the relocation was approved on February 12, 2024.

The relocation has yet to occur, as the presence of Daystar's WDDN-LD and WDWA-LD on channel 23 in Washington and Burke, Virginia, respectively, present another technical obstacle.

Right from the start (January 3, 1970), WHAG began offering local newscasts with The Valley News which aired weeknights at 6, 7, and 11 p.m.

The original anchors were Bob Witt with news, Glenn Presgraves with sports, and Bill Wolfinger forecasting the weather.

Outside of a few senior staffers, the station's news department mainly acted as a "farm team" operation that features new journalists and behind the scenes staff who have graduated from their schools looking for experience at a small-market television station and serve as "one man band" personnel that shoot, write, and edit their own stories, and eventually move on to further opportunities in larger markets.

Nexstar undertook a major expansion of WDVM-TV's news operation that launched on July 1, 2016, the same day the station lost its NBC affiliation.

[36][37] As part of the spectrum repacking process following the FCC's incentive auction, WDVM changed from channel 26 to 23 on August 2, 2019.