WOI-DT: Des Moines' ABC Affiliate and Television's University Pioneer
WOI-DT, channel 5, is the ABC affiliate for Des Moines, Iowa, licensed to Ames and branded on air as Local 5. From studios on Westown Parkway in West Des Moines and a transmitter in Alleman, the station serves central Iowa as part of a duopoly with CW station KCWI-TV. Its contemporary identity, however, rests on one of the most remarkable origins in American broadcasting: WOI-TV signed on February 21, 1950, built by Iowa State College, and became the first television station owned by an educational institution and the first commercial television station in the United States owned by a major college.
That university beginning shaped everything that followed, from the station's landmark children's program The Magic Window, which ran for forty-three years, to the throttled commercial operation that left channel 5 a distant third in local news for decades, to the contested 1994 sale that finally moved it into private hands. Its website is weareiowa.com.
Overview
WOI-DT is the Des Moines market's ABC affiliate, carrying the network's entertainment, news and sports programming on channel 5.1, with subchannels that include True Crime Network and Grit. The station is currently described as owned by the Tegna subsidiary of Nexstar Media Group, following Nexstar's acquisition of Tegna, completed March 19, 2026; Nexstar also owns Des Moines NBC affiliate WHO-DT, an overlap made possible by recent changes in federal ownership rules and court rulings, though a federal court injunction in 2026 temporarily prevented integration of the combined companies' stations.
Licensed to Ames, home of Iowa State University, but long based in the Des Moines area, WOI embodies the dual identity in its license: a station born on a college campus that now competes as a commercial broadcaster in Iowa's largest media market.
History: A University Builds a Television Station
WOI-TV grew out of Iowa State's long-running WOI radio stations and the foresight of college president Charles E. Friley, who pushed to expand the institution into television early enough to file before the Federal Communications Commission's years-long freeze on new station grants. The startup costs were paid in part with remaining money from a federal grant awarded to the university for its work connected to the Manhattan Project. When the station signed on February 21, 1950, originally on channel 4, it was Iowa's second television station, after WOC-TV in Davenport, and the first in central Iowa.
The station was intended as an educational service, airing college courses and agricultural extension programs from its campus studios in Ames. But the freeze left it the only television signal in central Iowa, so the Iowa Board of Regents allowed it to accept national network programming and advertising. In its early years channel 5 carried programs from ABC, CBS, NBC and DuMont, with CBS as its primary affiliation. After the freeze ended, the station moved to channel 5 in 1952, and competition arrived: WHO-TV signed on in 1954 and took NBC, while KRNT-TV, now KCCI, signed on in 1955 and took CBS, owing to its radio sister's long CBS relationship. That left WOI as the ABC affiliate, a role it has held ever since, with a brief secondary affiliation with the NTA Film Network in the late 1950s.
The Iowa State Years and a Throttled Operation
University ownership gave WOI-TV a public-service mission unusual for a commercial licensee. It carried educational programming until Des Moines' own educational station, KDPS-TV, now KDIN-TV, signed on in 1959, and its facilities were used by the university to deliver lectures by satellite. Its best-known creation was The Magic Window, developed in 1951 by producer Dick Hartzell and station artist Joy Ringham Munn as an educational children's program featuring handicrafts, children's news items and birthday recognition for young viewers.
Commercially, though, the Regents held the station back. Local advertising was permitted only from 1955, the station employed no advertising sales representatives of its own, and the operation was deliberately throttled to avoid allegations of unfair competition with private broadcasters. Combined with the loss of CBS and NBC programming to Des Moines-based rivals, those constraints left WOI-TV in a very distant third place in central Iowa news ratings for decades, a handicap whose effects long outlived the policies that caused it.
Notable People: Betty Lou Varnum and The Magic Window
The defining figure of WOI's university era was Betty Lou Varnum, who arrived at the station in late 1954 from a teaching job in Wisconsin, having never been in a television studio, and took over as host of The Magic Window within two days. She hosted the program, later titled Betty Lou and the House with the Magic Window, until 1994. With a total run from 1951 to 1994, it became the longest-running children's television program in American history, a record attributed to it with only the franchise production Bozo's Circus as a technical exception.
From the Magic Forest set, Varnum and puppet companions Gregory Lion, Catrina Crocodile and Dusty the Unicorn taught children a craft in each episode and introduced segments including Felix the Cat, Tales of the Riverbank and Let's Be Friends, which featured children from other cities and countries. Varnum's work extended well beyond children's television: she became one of Iowa's first newswomen, hosted the talk program Dimension 5 and the disability-focused Status 6, which won a McCall's Golden Mike Award, produced Stringers, built from viewers' Super-8 home movies, and hosted Iowa State Fair and VEISHEA parade coverage. She died in August 2021. Other notable alumni of the station include national figures who passed through its newsroom, among them Steve Bell, who anchored at WOI from 1959 to 1961, sportscaster Curt Menefee, a sports anchor in 1987 and 1988, and newsman Tom Pettit.
Sale and the Commercial Era
On June 17, 1992, the Iowa Board of Regents voted to sell WOI-TV to Capital Communications Company, a joint venture of Citadel Communications and Connecticut's Lynch Corporation, for $14 million. Supporters of university ownership, organized as Iowans for WOI-TV, sued to block the sale, arguing the station was a benefit to the university. The litigation delayed the closing until March 1, 1994, when the station was finally sold; Iowa State kept the WOI radio stations. Capital moved the television studios to a temporary Des Moines location later that year, and in 1998 WOI-TV settled into its current studios on Westown Parkway in West Des Moines, formally completing the migration from Ames campus to metropolitan commercial broadcaster.
Later ownership changes followed the industry's consolidation. Citadel's Iowa stations, including WOI and Sioux City's KCAU, were sold to Nexstar, in a transaction announced in 2013 for the three-station group including Rock Island's WHBF and completed in March 2014. Nexstar invested in the long-lagging news operation, adding newsroom positions and updating the studio set and equipment alongside a rebrand. WOI's call letters, incidentally, are traditionally explained as a reverse evocation of the word Iowa itself, a fitting signature for a station so thoroughly identified with the state.
Affiliation and Programming
ABC programming has anchored channel 5 since 1955, when the departures of NBC and CBS to new Des Moines stations left WOI as the market's ABC outlet by default; the affiliation then became permanent. The station carries ABC's prime-time entertainment, Good Morning America, ABC World News Tonight and the network's sports coverage, supplemented by syndicated programming and its own Local 5 newscasts. Its digital subchannels add services including True Crime Network on 5.2 and Grit on 5.3, with The Nest among the additional offerings listed for the multiplex.
Because WOI's low-VHF digital signal can be difficult for some viewers to receive, since February 2020 a simulcast of the main 5.1 service has also been broadcast from sister station KCWI-TV as channel 5.5, an engineering workaround that puts the ABC signal on a more easily received transmission while preserving the channel 5 brand.
News Operation
Local news has been WOI's longest-running challenge. The university-era constraints, no sales staff, limited resources and a mission that treated news as a service rather than a competitive weapon, entrenched KCCI and WHO as the market's news leaders while channel 5 ran a distant third for decades. Successive commercial owners attempted to close the gap with new branding, new sets and added staff; Nexstar's ownership brought a documented investment of eight additional newsroom positions along with updated equipment.
Today the station presents its journalism as Local 5 News, sharing the West Des Moines facility with KCWI-TV, whose schedule includes a Local 5-produced morning and prime-time presence under the duopoly model common in modern broadcasting. In a market where Iowa politics, including the state's first-in-the-nation caucuses, generates national attention, WOI's newsroom covers the same political ground as its rivals from its own newsroom on Westown Parkway.
Market and Audience
The Des Moines-Ames designated market area covers central Iowa, a region combining the state capital and largest city with the university community in Ames and a broad agricultural hinterland. WOI competes there against Hearst's KCCI, the CBS affiliate; WHO-DT, the NBC affiliate now under common corporate ownership; Fox affiliate KDSM-TV; and Iowa PBS. For a station that spent forty-four years as a university service forbidden to compete aggressively, holding the ABC affiliation in a top-75 market against entrenched rivals is itself a measure of how completely the post-1994 commercial operation rebuilt the station's position.
Technical Details
WOI-DT broadcasts on VHF channel 5, the assignment it has held since 1952 after two years on channel 4, and transmits from Alleman, Iowa, north of Des Moines, where the tower farm serving the market is located. The historic WOI tower at Alleman stands about 609.6 metres, roughly 2,000 feet, among the tallest structures in Iowa. The station's facility ID is 8661. Its analog signal operated at 100 kilowatts; the digital plant that replaced it broadcasts from the same Alleman site, with the KCWI-hosted 5.5 simulcast supplementing reception as described above.
Recent Developments
The station's ownership took a dramatic turn with the Nexstar-Tegna combination. Nexstar had sold WOI and KCWI to Tegna in 2019 as part of an eleven-station, $740 million divestiture required when it acquired Tribune Media, owner of WHO-DT, choosing to keep WHO and divest WOI. Six years later the logic reversed: Nexstar announced its acquisition of Tegna in August 2025 and completed it on March 19, 2026, bringing WOI-DT back under Nexstar, this time alongside WHO-DT in the same market, after a federal appeals court struck down the rule barring ownership of two top-four stations. A temporary restraining order issued March 28, 2026, later escalated to a preliminary injunction, prevented Nexstar from integrating the acquired stations, leaving WOI's corporate future, like that of its new sister stations, in an unusual state of legal suspension even as Local 5 continues broadcasting ABC programming and local news to central Iowa without interruption.
