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ABC affiliate in Fargo, North Dakota

WDAY TV (channel 6) is a television station in Fargo, North Dakota, United States, affiliated with ABC. It serves as the flagship television property of locally based Forum Communications Company, which also owns WDAY radio (970 AM) and The Forum of Fargo Moorhead. The television and radio stations share studios on South 8th Street in downtown Fargo, while WDAY TV's transmitter is located near Amenia.

WDAY TV serves one of the largest geographic viewing areas of any station in the United States. It consists of all of North Dakota as well as northwestern Minnesota, northern South Dakota, eastern Montana, southern Manitoba, Canada including Winnipeg, and far western Ontario, Canada including Kenora. It covers this region with a network of three full power semi satellites: WDAZ TV (channel 8) in Grand Forks, KBMY (channel 17) in Bismarck, and KMCY (channel 14) in Minot, which itself is a semi satellite of KBMY.

WDAZ TV (channel 8), serving Grand Forks and licensed to Devils Lake, operates as a semi satellite of WDAY TV. As such, it simulcasts all network and syndicated programming as provided through WDAY TV, and the two stations share a website. However, WDAZ TV airs separate legal identifications and commercial inserts targeting the Grand Forks metro and northern portion of the Fargo–Grand Forks market. Local newscasts, produced by WDAY TV, are simulcast on both stations. The two stations are counted as a single unit for ratings purposes.

KBMY (channel 17) in Bismarck, and KMCY (channel 14) in Minot, clear all network programming as provided through WDAY TV and simulcast WDAY TV's newscasts, but airs a separate offering of syndicated programming; there are also separate commercial inserts and legal station identifications. Internal operations are based at WDAY TV's studios in Fargo.

WDAY TV went on the air for the first time on June 1, 1953, as the second television station in North Dakota (after KCJB TV, now KXMC TV, in Minot) and the first in Fargo and the eastern part of the state. It was owned by a group of Fargo investors led by Norman Black, owner and publisher of The Forum. It took its call letters from WDAY radio, which has been owned by The Forum since 1935. Black bought the remaining shares in 1958. It originally carried programming from all four networks of the day–CBS, NBC, ABC and DuMont. However, it was a primary NBC affiliate owing to its radio sister's long affiliation with NBC radio. It lost CBS to KXJB TV (channel 4) in 1954, lost DuMont later in 1955 as that network was winding up operations, and lost ABC in 1959 when KXGO TV (channel 11, now KVLY TV) signed on. In 1983, WDAY TV swapped affiliations with channel 11, then known as KTHI TV, and became an ABC affiliate. Although it was apparent that Fargo and Grand Forks were going to be a single market, channel 6 did not cover the northern portion of this vast market very well. It was required to conform its signal to protect CBC Television's Winnipeg station, CBWT, which took to the air on channel 6 a year after WDAY TV signed on. As a result, it was barely viewable in northern Grand Forks and could not be seen at all in much of the northern part of the market. To solve this problem, it signed on WDAZ TV in 1967 as a semi satellite for the northern portion of the market. WDAY TV and WDAZ TV began operating cable only WB affiliate "WBFG" in 1998. WDAY/WDAZ replaced The CW Plus successor of "WBFG" with the Justice Network (which moved from 6.4) on new digital broadcast subchannels WDAY 6.2 and WDAZ 8.2 on September 12, 2016, and WDAY'Z Xtra (which launched in 2013) on digital subchannel 6.3 in the Fargo area and 8.3 in the Grand Forks area. WDAY DT4 returned to the air in 2017 as an affiliate of Ion Television. WDAY TV is one of the westernmost stations in the country whose call sign begins with W. Most stations west of the Mississippi River begin with K; however, WDAY radio signed on in 1922, a year before the U. S. government moved the K W boundary from the state borders between 102 and 104 degrees West longitude (including the North Dakota–Montana border) to the Mississippi River.

WDAY X is a digital subchannel carried on WDAY 6.3, WDAZ 8.3, KBMY 17.3, and KMCY 14.3, airing as a primary affiliate of MyNetworkTV on KBMY and KMCY and as an independent station on WDAY TV and WDAZ TV. This subchannel airs syndicated programming, North Dakota and Minnesota high school sports, North Dakota high school state tournaments, Minnesota State University Moorhead athletics, and select University of North Dakota athletic events. It airs Doppler weather radar and "Storm Tracker" weather loop with easy listening music during overnights. WDAY X is carried on all cable providers in the coverage area. WDAY X (as WDAY Xtra) became available in HD in 2014, and in 2016, MyNetworkTV programming began airing in prime time, although on KBMY and KMCY only (in Bismarck and Minot respectively) but not on WDAY or WDAZ; KRDK TV in Valley City serves as Fargo's MyNetworkTV affiliate.

WDAY TV presently broadcasts 36 1/2 hours of locally produced newscasts and other programming each week (with 6 1/2 hours each weekday, 2 1/2 hours on Saturdays, and two hours on Sundays). WDAY's newscasts have traditionally led the ratings in the Fargo–Grand Forks market. WDAZ once had a larger news presence, as it aired separate 5 p. m., 6 p. m., 10 p. m., and weekend newscasts, with the only WDAY newscast airing being the morning First News. WDAZ's weekend news was taken over by WDAY in 2011 and its 5 p. m. weekday newscast was taken over in July 2014. The decision to replace the 5 p. m. broadcast was met with an immediate backlash from viewers, including those who circulated a petition on Change. org demanding that Forum restore the local 5 p. m. news to WDAZ. On February 22, 2012, WDAY TV began broadcasting its local newscasts in high definition. KBMY and KMCY began airing some of WDAY's newscasts in 2014. WDAY TV signs off briefly in the overnight hours; as a result, ABC's overnight news program, World News Now, is not broadcast. The station goes off the air at 3:37 a. m. and signs on again at 4 a. m. to broadcast America This Morning. In August 2016, WDAY TV launched a half hour prime time newscast on its second and third subchannels called WDAY Xtra News at 9. It is simulcast on WDAZ's subchannels in Grand Forks, as well as KBMY/KMCY's subchannels in the Bismarck–Minot market. On September 11, 2017, WDAY TV launched a 4 p. m. weekday newscast that is simulcast on sister station WDAZ. It was the first afternoon newscast ever to air in the market. On November 30, 2018, it was announced that WDAZ would merge its news department with that of WDAY TV, resulting in the cancellation of WDAZ's separate 6 and 10 p. m. newscasts, effective December 21. General manager Joshua Roher cited "changes to distribution of television, emerging technologies and economic factors in our area" as reasons for the consolidation, in a statement to the Grand Forks Herald. WDAY TV continues to maintain a news bureau and sales office in Grand Forks. On September 5, 2021, WDAY TV launched a Sunday morning newscast that is simulcast on sister stations WDAZ and KBMY/KMCY. It was the first Sunday morning newscast to air in the market.

WDAY TV shut down its analog signal, over VHF channel 6, on June 12, 2009, the official date on which full power television stations in the United States transitioned from analog to digital broadcasts under federal mandate. The station's digital signal remained on its pre transition UHF channel 21, using virtual channel 6.