WDIO-DT, virtual and VHF digital channel 10, is an ABC-affiliated television station licensed to Duluth, Minnesota, United States, serving north-central and northeastern Minnesota and northwestern Wisconsin. The station is owned by the Dallas-based Belo Corporation. WDIO-DT's studios and transmitter are located on Observation Road in Duluth.
WIRT-DT (virtual and VHF digital channel 13) in Hibbing, Minnesota operates as a full-time satellite of WDIO; this station's transmitter is located at Maple Hill Park south of Hibbing. WIRT covers areas of Minnesota's Iron Range (including Grand Rapids, Virginia and Chisholm) that receive a marginal to non-existent over-the-air signal from WDIO, although there is significant overlap between the two stations' contours otherwise. WIRT is a straight simulcast of WDIO; on-air references to WIRT are limited to Federal Communications Commission (FCC)-mandated hourly station identifications during newscasts and other programming. Aside from the transmitter, WIRT does not maintain any physical presence locally in Hibbing.