WAIU was a charter member of the CBS Radio Network, being one of the 16 stations that aired the first CBS network program on September 18, 1927. In early November 1925, the American Insurance Union took over the station, changing the call letters to WAIU. In mid-1924 WBAV was reassigned to 710 kHz, now sharing time with WLW in Cincinnati, which was changed in early 1925 to 1020 kHz, with a new timeshare partner of WEAO in Columbus. One of the Ohio allocations was 770 kHz, and WBAV was assigned to this frequency on a time-sharing basis with WJAX in Cleveland. In May 1923 additional "Class B" frequencies were made available. In September 1922 the Department of Commerce set aside a second entertainment wavelength, 400 meters (750 kHz) for "Class B" stations that had quality equipment and programming. A few months after receiving its initial license, WBAV was authorized to also broadcast on the 485 meter "market and weather" wavelength. The station made its formal debut on the evening of May 8, 1922, which the Columbus Dispatch heralded as "a success from every standpoint". The WBAV call letters were randomly assigned from an alphabetical roster of available call signs. WTVN's first license, as WBAV, was issued on April 29, 1922, to the Erner & Hopkins Company at 146 North Third Street in Columbus, for operation on 360 meters. World and national news is supplied by ABC News Radio.Įffective December 1, 1921, the Department of Commerce, which regulated radio at this time, adopted regulations setting aside two wavelengths for use by broadcasting stations: 360 meters (833 kHz) for "entertainment" programs, and 485 meters (619 kHz) for "market and weather" reports. Weekend syndicated programs include In the Garden with Ron Wilson, This Morning, America's First News with Gordon Deal and Sunday Night with Bill Cunningham.
Weekends feature shows on money, health, real estate, guns, home repair, cars and the law. At night, WTVN also carries The Mark Levin Show from Westwood One. WTVN has two local weekday talk hosts: Brandon Boxer is heard in morning drive time and Mark Blazor hosts afternoons. WTVN's programming is largely made up of co-owned Premiere Networks' nationally syndicated talk shows, including The Clay Travis and Buck Sexton Show, The Glenn Beck Program and Coast to Coast AM with George Noory live and The Sean Hannity Show on tape delay. The nighttime signal is primarily radiated northward over central Columbus, and outlying suburbs in the direction of the nulls experience a degraded signal.
At night, a directional antenna protects stations operating on the same frequency, including KCSP in Kansas City, WTEL in Philadelphia, and WIOD in Miami. With 5,000 watts of power, during the day the station can be heard as far away as Indianapolis, Fort Wayne, Detroit, and Cleveland. WTVN began broadcasting in HD Radio in June 2005, but the in-band on-channel subcarrier was discontinued by 2015.
In addition to a standard analog transmission, the station simulcasts over the HD digital subchannel of co-owned 93.3 WODC, and streams online via iHeartRadio. The WTVN studios area located in the McKinley Avenue Corridor northwest of Downtown Columbus, and its transmitter site is near Obetz. Owned by iHeartMedia, the station serves the Columbus metro area. WTVN (610 AM) – branded as "News Radio 610 WTVN" – is a commercial talk radio station licensed to Columbus, Ohio.
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