operating as a daytime-only station on 610 kHz, shifted to 640 kHz. This in turn made it possible for WHKC to move from 640 to 610 kHz. WHKC installed a directional antenna near Columbus, which allowed it to expand to full-time operation with 1,000 watts, starting in February 1945. In 1949 WHKC's power was increased to 5,000 watts day and night. The station became WTVN on July 23, 1954 when it was acquired by Radio Cincinnati Inc., which later become Taft Broadcasting. The sale to the Taft family made 610 AM a sister station to WTVN-TV (channel 6); in 1960 Taft launched an FM station in Columbus, WTVN-FM (96.3, now WLVQ). In 1987 Taft was reorganized as Great American Broadcasting after financier Carl Lindner, Jr. succeeded in a hostile takeover of the company. Great American retained WTVN and WLVQ but not WTVN-TV (now WSYX), which was sold to former Taft shareholder Robert Bass and his new company, Anchor Media. Great American Broadcasting was renamed Citicasters in 1993. Jacor Communications purchased Citicasters in 1996. WLVQ was split from WTVN when the FM station was acquired by CBS Radio in 1998, and a year later Jacor was absorbed into Clear Channel Communications. At one time, when WTVN still aired music programming, the station broadcast using C-QUAM AM Stereo. The stereo equipment was installed in 1988 but it was not until 1992 that the station operated in full stereo. Analog stereo transmissions ended several years later, though the internet feed remains stereophonic. WTVN also broadcast using iBiquity's HD Radio format in the late 2000s, though it was difficult to maintain a lock on the carrier and digital transmissions have since ceased. An attempt was made to improve WTVN's coverage, by installing a new antenna array and increasing power to 50,000 watts. However, zoning problems at the antenna site could not be resolved. WTVN tried to claim the right to build new towers as a "public utility", but lost in court on May 12, 2002. In 2006 the station replaced Pat Pagano and the meteorologists at Metro Weather Service with weather talent from WBNS (Channel 10), which was itself replaced by weather services from WSYX television., Metro Weather, based out of Valley Stream, New York, provided weather reports 24 hours, including Pagano during Bob Conners' morning show. Afternoon drive was hosted by John Corby until his death on January 20, 2018. AIU Building American