"WZDC-CA is a low-power Telemundo affiliate in the Washington, DC area. The station is owned by ZGS Broadcast Holdings, and broadcasts on channel 25 from a transmitter located in the Northeast region of the District of Columbia.WZDC-CA signed on as W64BW channel 64 on January 25, 1993, as Washington, DC's Telemundo affiliate. On December 1, 1995, the call letters were changed to WZGS-LP, reflecting the station's owner. On June 27, 2000, the call letters were changed to WZDC-LP.

On June 3, 2002, the station started a local Spanish newscast, in cooperation with WRC-TV.

On April 10, 2007 WZDC-LP moved to channel 25, as the channel 64 frequency was slated to be phased out of television broadcasting. The move was also required in order to expand its coverage area throughout the metro DC area, including most of Prince George's County in Maryland. When the station was on channel 64, it broadcast with an effective radiated power of 12.5 kilowatts, covering most, but not all of D.C., and was barely viewable outside the capital; cable coverage was necessary to serve the surrounding areas. Howeever, neither DirecTV nor Dish Network offers WZDC's local signal in its channel offerings in the Baltimore/Washington area, in comparison to its competitor, Univision 14 WFDC. At the present time, channel 25 is still barely viewable throughout the metropolitan area, as viewers in eastern Montgomery County (around Burtonsville), Howard County and Anne Arundel County in Maryland cannot receive its broadcasts. This is probably due to interference with the signal of WHAG-TV in nearby Hagerstown. Viewers in Arlington County, Virginia, closer to channel 25's transmission tower, also report the inability to view WZDC's broadcasts."

-Wikipedia