WDIO-DT

WDIO-DT (channel 10) is a television station in Duluth, Minnesota, United States, affiliated with ABC and owned by Hubbard Broadcasting. The station's studios and transmitter are located on Observation Road in Duluth.

WDIO-DT
CityDuluth, Minnesota
Channels
BrandingWDIO (general)
WDIO News (newscasts)
Programming
Affiliations10.1: ABC
for others, see § Subchannels
Ownership
Owner
KSTP-TV/KSAX/KRWF, KAAL-TV
History
First air date
January 24, 1966 (1966-01-24)
Former call signs
WDIO-TV (1967–2009)
Former channel number(s)
Analog:
10 (VHF, 1966–2009)
Digital:
43 (UHF, 2002–2009)
Call sign meaning
Duluth Channel "IO" (10)
Technical information[1]
Licensing authority
FCC
Facility ID71338
ERP45 kW
HAAT297 m (974 ft)
Transmitter coordinates46°47′15″N 92°7′22″W
Links
Public license information
Websitewww.wdio.com
Satellite station
WIRT-DT
Channels
Brandingsee WDIO-DT infobox
Programming
Affiliations13.1: ABC
for others, see § Subchannels
Ownership
Owner
  • Hubbard Broadcasting
  • (WDIO-TV, LLC)
History
First air date
August 31, 1967 (1967-08-31)[2]
Former call signs
WIRT (1967–2009)
Former channel number(s)
Analog:
13 (VHF, 1967–2009)
Digital:
36 (UHF, 2002–2009)
Call sign meaning
Iron Range Television[3]
Technical information[4]
Facility ID71336
ERP13 kW
HAAT204 m (669 ft)
Transmitter coordinates47°22′53″N 92°57′16″W
Translator(s)See below
Links
Public license information

WIRT-DT (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.

History

WDIO-TV first went on the air on January 24, 1966 and has transmitted from its first day in color. It immediately joined ABC, which had previously been relegated to off-hours clearances on CBS affiliate KDAL-TV (channel 3, now KDLH) and NBC affiliate WDSM-TV (channel 6, now KBJR-TV). It was owned by Frank Befera, a trained engineer who owned a chain of radio stations across northeastern Minnesota. WIRT went on the air on August 31, 1967. Befera sold channels 10 and 13 to publishers Harcourt Brace Jovanovich in 1977,[5] but remained as president and general manager. HBJ sold the stations to Hubbard Broadcasting in 1986, and Befera retired a year later.

The station's former logo from 2013 to early 2019; the "10/13" element was used for decades.

The station utilized a longtime logo from the 1980s until 2019, when it switched to a callsign-only logo. The lettering used in the logo (which blends a number "10" into the "IO" lettering) dates back to as late as the early 1970s. Changes to the 10/13 logo until 2019 merely depended on changes to ABC's logo and branding guidelines. On April 11, 2008, a blizzard swept through the Northland. This resulted in power outages in Duluth, causing WDIO, KDLH and KBJR all to lose their signal at times.

On November 28, 2011, MeTV replaced RTV on 10.2 and 13.2.[6] At the end of September 2017, WDIO/WIRT added Ion Television programming to their third subchannels, and all three signals now run in 720p high definition.[7]

Programming

In addition to the ABC network schedule, syndicated programming featured on WDIO/WIRT includes Live with Kelly and Ryan, Tamron Hall and Entertainment Tonight.

Every New Year's Eve, WDIO often cuts in to Dick Clark's New Year's Rockin' Eve to broadcast the SMDC New Year's Eve Ball, which was a fundraiser for the hospital. In 2008, after 17 years of televising the event, WDIO announced that it would stop its annual broadcast. This decision, along with declining attendance, led to the decision to cancel the event. The Ball itself ran for 23 years and at its peak hosted 4,000 guests.[8]

News operation

WDIO/WIRT's newscasts were branded throughout the 1970s and 1980s as Action News. The station changed its branding to Eyewitness News in the early 1990s; it shared this branding with sister station KSTP-TV in Minneapolis–Saint Paul. However, the Eyewitness News branding was the station's only resemblance to KSTP. WDIO uses its own graphics and music packages.

WDIO and KSTP team up when breaking news happens (example: the I-35W bridge collapse in Minneapolis) or for major election debates.

Longtime WDIO news anchor Dennis Anderson joined the station in 1969, initially as anchor of the nightly news' "Action Line" segment. He was promoted to chief anchor of the evening newscasts in 1970;[9] he later was the first local TV anchor to announce the sinking of the ore freighter Edmund Fitzgerald which sank in Lake Superior on November 10, 1975. Anderson retired Wednesday, May 25, 2011, after 42 years with the station.[10] Darren Danielson, previously of WDSE, replaced Anderson as anchor the following day, Thursday, May 26.[11]

In October 2009, 20-year veteran Deborah Anderson stepped down from being the lead anchor of the weekend newscasts. The station management filled the vacancy with reporters already employed with the station rather than searching elsewhere for a replacement.

At some point in late 2010 or early 2011, WDIO became the third station in the Duluth area to broadcast its local newscasts in 16:9 enhanced definition widescreen.

The Eyewitness News branding was retired in January 2019 in favor of WDIO News along with a new logo and broadcast set.

Ratings

Soon after sign-on, WDIO shot to the top of the local news ratings and has remained there more or less ever since. During the 1970s and 1980s, WDIO dominated competitors KDLH and KBJR.

In the May 2007 ratings race, WDIO took first place in all timeslots except at 5 p.m., where they fell to NBC affiliate KBJR. In February 2008, WDIO won with number of viewers in the morning, and at 6 and 10 p.m. KBJR once again came out slightly ahead at 5 p.m. In July 2009, WDIO topped the ratings again. The 10 p.m. newscast had about 7,000 more viewers than second place KBJR. WDIO also won in the weekend ratings.

In November 2009, WDIO doubled the ratings of KBJR at the 10 p.m. newscast with a 12 share compared to KBJR's 6 rating and KDLH's 3. The station also swept the 5 and 6 p.m. time-slots and with a 14 and an 11 rating respectively. KBJR rated a 10 at the same timeslots according to the Duluth News Tribune. Take note that this ratings period marks one full year anniversary of WDIO's market dominance.

Technical information

Subchannels

The stations' digital signals are multiplexed:

Subchannels of WDIO-DT[12] and WIRT-DT[13]
Channel Res. Aspect Short name Programming
WDIOWIRT
10.113.1 720p16:9WDIOabcMain programming / ABC
10.213.2 WDIO-MeMeTV
10.313.3 480i WDIOIonIon Television
10.413.4 Defy TV
10.513.5 Grit
10.613.6 Scripps News

Analog-to-digital conversion

Both stations discontinued regular programming on their analog signals, on February 17, 2009, to conclude the federally mandated transition from analog to digital television. The station's digital channel allocations post-transition are as follows:[14][15]

  • WDIO discontinued regular programming on its analog signal, over VHF channel 10; the station's digital signal relocated from its pre-transition UHF channel 43 to VHF channel 10.
  • WIRT discontinued regular programming on its analog signal, over VHF channel 13; the station's digital signal relocated from its pre-transition UHF channel 36 to VHF channel 13.

Translators

Besides WIRT, WDIO is seen on several outlying digital translators in the Iron Range of northeastern and north-central Minnesota. All of these translators are licensed as repeaters of WIRT; via PSIP virtual channel numbering, each translator station remaps to channel 13.

City of license Callsign Channel ERP HAAT Facility ID Transmitter coordinates Owner
Big FallsK31MA-D 310.406 kW77 m (253 ft)1411348°11′28.0″N 93°47′24.0″WKoochiching County
Bigfork
Marcell		K23KZ-D 23145 m (476 ft)2036247°39′05.0″N 93°40′25.0″WEZ-TV, Inc.
BirchdaleK33PL-D 3387 m (285 ft)1411948°29′03.0″N 94°00′27.0″WKoochiching County
International FallsK24MT-D 240.442 kW118 m (387 ft)1410248°34′22.8″N 93°19′21.5″W
KabetogamaK32JZ-D 320.1 kW125 m (410 ft)1412048°21′40.0″N 93°00′37.0″W
MaxK36KZ-D 360.434 kW117 m (384 ft)2036447°36′48.0″N 94°05′25.0″WEZ-TV, Inc.
NorthomeK16JD-D 16124 m (407 ft)1410847°49′16.0″N 94°18′59.0″WKoochiching County
Red LakeK24MM-D 240.469 kW97 m (318 ft)5534647°50′37.0″N 95°02′19.0″WRed Lake Indian Reservation

References
  1. "Facility Technical Data for WDIO-DT". Licensing and Management System. Federal Communications Commission.
  2. The Broadcasting and Cable Yearbook says September 1, while the Television and Cable Factbook says August 31.
  3. "Call Letter Origins: The List". home.earthlink.net. Archived from the original on June 4, 2011. Retrieved January 12, 2022.
  4. "Facility Technical Data for WIRT-DT". Licensing and Management System. Federal Communications Commission.
  5. Television and Cable Factbook, 1988 edition
  6. WDIO: "WDIO/WIRT-DT to Launch Me-TV", November 7, 2011.
  7. "WDIO/WIRT Brings ION Television to the Northland" (Press release). WDIO/WIRT. September 27, 2017. Retrieved September 28, 2017.
  8. "SMDC says the New Year's Eve Ball is over". June 18, 2008. Retrieved June 19, 2008.
  9. WDIO biography: Dennis Anderson (via archive.org)
  10. WDIO: "Dennis Anderson: Celebrating a Career"
  11. WDIO: "Danielson Named Anchor on Eyewitness News at Six and Ten", March 29, 2011.
  12. RabbitEars TV Query for WDIO
  13. RabbitEars TV Query for WIRT
  14. List of Digital Full-Power Stations
  15. Tuesday Night at Midnight WDIO and WIRT-TV Analog Signals End, WDIO-TV, February 16, 2009
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