KDLT-TV (channel 46) is a television station in Sioux Falls, South Dakota, United States, affiliated with NBC and Fox.

The two stations share studios in Courthouse Square on 1st Avenue South in Sioux Falls; KDLT-TV's transmitter is located southeast of the city near Rowena.

The station was sold again in 1982 to become KDLT-TV; it lost its ABC affiliation when the network opted to move to KSFY-TV the next year, picking up NBC instead.

In 2019, Gray Television, owner of KSFY, sought and was granted Federal Communications Commission approval to buy KDLT in hopes of creating a stronger challenge to long-dominant KELO-TV.

[6] Coinciding with the construction of a new 1,569-foot (478 m) tower in Salem, midway between Mitchell and Sioux Falls, KORN-TV switched to ABC on May 12, 1969, giving the network its first primary affiliate in South Dakota.

The signal traveled in a 92-mile (148 km) radius from the transmitter site, providing city-grade coverage to 23 counties in eastern South Dakota and giving Sioux Falls full service from all three major networks.

[9] The new owners changed the call sign the next year to KXON-TV, as Mitchell Broadcasting retained the KORN radio stations.

[10] Additionally, Buford opened a sales office in downtown Sioux Falls, the station's first physical presence in the city.

[18] Gillett made improvements to the presentation of the station's two daily newscasts, then branded Metro News, which had perennially been in third place in the market behind KELO-TV and KSFY.

[26] That same year, rule changes allowed KDLT to move most of its operations to a studio on South Westport Avenue in Sioux Falls; previously, the station staff was split between the two cities.

[28] Heritage Media sold KDLT to Red River Broadcasting, owner of KVRR in Fargo, North Dakota, in 1994.

In 1995, it set up low-power translators in Aberdeen, Milbank, Pierre, and Watertown, adding over 84,000 potential viewers to its coverage area.

[31] On March 6, 1997, FCC granted Red River a construction permit to replace this translator with a new full-power station licensed to Sioux Falls on channel 46.

[41] Gray needed to obtain a waiver in order to complete the deal, since the FCC normally does not allow one entity to own two of the four highest-rated stations in a market.

However, in its filing requesting such a waiver, Gray argued that KDLT would be in a stronger position to compete in the market if its resources were combined with those of KSFY.

Gray contended that a KSFY/KDLT duopoly would fulfill "a dire need for an effective competitor" in a market where CBS affiliate KELO-TV has been the far-and-away leader for as long as records have been kept.

[43] Gray also filled gaps in ABC and NBC coverage by combining the transmitter networks of KDLT-TV and KSFY-TV, making both stations accessible in the same areas.

[43] On November 2, 2020, Gray purchased the non-license assets of KTTW (channel 7) from Independent Communications, Inc.; Fox programming moved to KDLT on subchannel 46.2.