KRDK-TV (channel 4) is a television station licensed to Valley City, North Dakota, United States, serving the Fargo–Grand Forks market. Owned by Major Market Broadcasting, it is affiliated with multiple networks on various digital subchannels, with Cozi TV, NewsNet, BEK Prime, and MyNetworkTV on its main channel. KRDK-TV's offices are located on Winter Show Road in Valley City. KRDK-TV's transmitter tower, located near Galesburg, North Dakota, stands at . It was the second tallest man-made structure on Earth when it was built in 1966. It is currently the seventh tallest structure in the world. In the United States, it is second only to the Petronius oil platform in the Gulf of Mexico and is still the tallest broadcasting tower in the Western Hemisphere. The station launched in December 1954 as KXJB-TV, the CBS affiliate for the market. KXJB consolidated with NBC affiliate KVLY-TV in 2003 under a local marketing agreement. In 2014, the station's non-license assets were acquired by KVLY's new owner Gray Television; due to increasing scrutiny by the Federal Communications Commission (FCC) surrounding local marketing agreements and similar arrangements, Gray decided against having the station acquired by an affiliated third party to maintain the LMA. Its CBS programming was moved to KVLY's second digital subchannel in December 2014 and KXJB-LD in 2016, and KXJB's license was sold to the minority-owned Major Market Broadcasting, who re-christened the station KRDK-TV. The station returned to the air during January 2015 carrying several digital television networks. History As KXJB-TV Channel 4 signed on July 1, 1954 as KXJB-TV, owned by John Boler, with studios in Valley City and a tall transmitter tower near Pillsbury ( northeast of Valley City). KXJB was co-owned with the KX Television network in western North Dakota until 1971. KXJB moved its main studios to Fargo in 1963, and completed construction of its current tall tower site near Galesburg in 1966. The station was a CBS affiliate, and up until its sale in 2014 was the only major station in Fargo that has never changed its primary affiliation, although it shared ABC programming with WDAY-TV (channel 6) until KXGO-TV (channel 11, later KTHI-TV and now KVLY-TV) signed on in 1959. It was also an affiliate of the NTA Film Network. When West Acres Shopping Center opened in 1972, KXJB-TV had a studio in the mall, located roughly where the food court is today. The station broadcast its daytime