KTXA (channel 21) is an independent television station in Fort Worth, Texas, United States, serving the Dallas–Fort Worth metroplex. It is owned by the CBS News and Stations group alongside Fort Worth–based CBS station KTVT (channel 11). Both stations share primary studio facilities on Bridge Street (off I-30), east of downtown Fort Worth, and advertising sales offices at CBS Tower on North Central Expressway in Dallas. KTXA's transmitter is located in Cedar Hill, Texas. KTXA began broadcasting in January 1981 and was one of three new television stations in the Metroplex in six months. All three broadcast advertiser-supported commercial programming during the day and scrambled subscription television (STV) at night; KTXA's service, from ON TV, was hamstrung by the most intense competition in any STV market in the United States and by a dispute over adult programming, closing after two years. The station found success as an independent in a hot market and was sold twice in rapid succession for large amounts. However, when the independent station trade, advertising market, and regional economy cooled, it was sold again for less than half of its previous value. The Paramount Stations Group acquired KTXA and other stations in two parts between 1989 and 1991, bringing much-needed stability. KTXA was one of several Paramount-owned stations to be charter outlets for the United Paramount Network (UPN) in 1995 and merged its operations with KTVT in 2001 after a corporate buyout of CBS. When UPN merged into The CW in 2006, KTXA was not selected to affiliate with the network, and KTXA retooled its local programming around prime time news and professional sports coverage. Prior history of UHF channel 21 in Fort Worth The UHF channel 21 allocation in the Dallas–Fort Worth market was originally occupied by KFWT, an independent station licensed to Fort Worth that signed on the air on September 14, 1967. Owned by W. C. Windsor's Trinity Broadcasting Company (no relation to the Trinity Broadcasting Network, which was formed in 1973) alongside KFWT-FM 102.1, the station was the first of three new UHF independents in six months in the Metroplex. Within two years, however, the station had gone silent for financial reasons. No buyer was ever found, and Trinity declared bankruptcy in March 1970, with the channel 21 equipment repossessed. History Early years In 1975 and 1976, two groups, both calling themselves Channel 21, Inc., filed applications with the Federal Communications Commission