KTXA, virtual channel 21 (UHF digital channel 29), is an independent television station serving the Dallas–Fort Worth metroplex that is licensed to Fort Worth, Texas, United States. The station is owned by the CBS Television Stations subsidiary of CBS Corporation, as part of a duopoly with CBS owned-and-operated station KTVT (channel 11). The two stations share primary studio facilities located on Bridge Street (off of I-30), east of downtown Fort Worth; KTXA's advertising sales offices are located at CBS Tower on North Central Expressway (north of NorthPark Mall) in Dallas; KTXA maintains transmitter facilities located south of Belt Line Road in Cedar Hill.