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TV and DT: Commercial television was introduced in the United States in July 1941, and initially TV stations were assigned standard unique four-letter call signs. In August 1946 the "-TV" suffix was introduced, [ 11 ] which, like "-FM", included the restriction that paired stations had to have the same owners and be in the same community.
Broadcast call signs are call signs assigned as unique identifiers to radio stations and television stations. While broadcast radio stations will often brand themselves with plain-text names, identities such as " cool FM ", " rock 105" or "the ABC network" are not globally unique.
This is a list of full-power television stations in the United States having call signs which begin with the letter K. Stations licensed to transmit under low-power specifications—ex., KAJN-CD, K35OY-D and KXJB-LD—have not been included.
The pages below contain lists of television stations in the U.S. by call sign. Historically, stations to the east of the Mississippi River were given call signs beginning with the letter W, stations to the west K. However, there are exceptions. See the article on North American call signs for more information.
KTLA, KFWB, KTTV, KNX — you know the call letters of local radio and TV stations and probably have a jingle or two stuck in your head. But where did this broadcasting alphabet soup originate?
Call signs are allocated to ham radio stations in Barbados, Canada, Mexico and the United States. Many countries have specific conventions for classifying call signs by transmitter characteristics and location. The call sign format for radio and television call signs follows a number of conventions.
In Mexico, AM radio stations use XE call signs (such as XEW-AM), while the majority of FM radio and television stations use XH. Broadcast call signs are normally four or five alpha characters in length, plus the -FM, -TV, or -TDT suffix where applicable. In South America call signs have been a traditional way of identifying radio and TV stations.
This is divided between only 67 different three-letter calls, because in many cases the same call sign is used by more than one station, although a given call sign is never assigned to more than one AM, FM or TV station. These 67 different three-letter call signs are currently grouped as follows: 25 assigned only to an AM station