WTCN was at the same time sold to the Minnesota Television Service Corporation headed by St. Paul businessman Robert Butler, a former ambassador to Cuba and Australia. The company quickly applied for a new license for channel 11, but had to negotiate for the frequency with the owner of WMIN 1400, who also applied for the channel. The two stations, WTCN and WMIN, arranged to share the TV broadcast day, alternating every two hours. This became the area's third TV station on September 1, 1953 and the WTCN call sign remained with it until 1985 when it became known as WUSA. Channel 11 was merged and sold to the H.M. Bitner Group in 1955 and eventually was owned by Metromedia for many years. Tegna, Inc. is the current licensee. This second incarnation of WTCN-TV was ABC's first full-time television network affiliate in the Twin Cities; however, it lost that affiliation to then-independent KMSP 9 (now a Fox owned and operated station) in April 1961. For the next 18 years channel 11 operated without a network affiliation as the market's independent TV outlet until it picked up the NBC affiliation in March 1979 during a marketwide affiliate switch. The station is now known as KARE. Prior to the TV station's current studio location in Golden Valley, its original studios were in the Calhoun Beach Hotel on Lake Street at Dean Boulevard, where the radio station had moved in 1952 following a three-year occupancy downtown with its former TV sister, WTCN-TV 4. WTCN Radio and TV-11 were sold to Time-Life Broadcast in 1957, and in 1964 the siblings were separated with the TV going to Chris-Craft Industries (who would later own KMSP 9) and the radio station purchased by Buckley-Jaeger who changed the call letters to WWTC on October 1. This change was made due to an FCC rule in place at the time that requested that two stations in the same market, but with different ownership have different call signs. In early 1965, the radio station relocated to downtown Minneapolis in the Builders Exchange Building at 609 2nd Avenue South, to studios formerly occupied by WDGY. In 1970, WWTC began broadcasting 24 hours a day and played soft popular music.