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Sign-on and sign-off. The closing announcement of ARD as heard in 1993 (in German). A sign-on (or start-up in Commonwealth countries except Canada) is the beginning of operations for a radio or television station, generally at the start of each day. It is the opposite of a sign-off (or closedown in Commonwealth countries except Canada), which ...
The RCA Indian-head test pattern. The Indian-head test pattern is a test card that gained widespread adoption during the black-and-white television broadcasting era as an aid in the calibration of television equipment. It features a drawing of a Native American wearing a headdress surrounded by numerous graphic elements designed to test ...
Television is one of the major mass media outlets in the United States. In 2011, 96.7% of households owned television sets; [1] about 114,200,000 American households owned at least one television set each in August 2013. [2] Most households have more than one set. The percentage of households owning at least one television set peaked at 98.4% ...
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.
Call signs in the United States. Call signs in the United States are identifiers assigned to radio and television stations, which are issued by the Federal Communications Commission (FCC) and, in the case of most government stations, the National Telecommunications and Information Administration (NTIA). They consist of from 3 to 9 letters and ...
SMPTE ECR 1-1978 (SDTV) In a SMPTE color bar image, the top two-thirds of the television picture contain seven vertical bars of 75% intensity. In order from left to right, the colors are white or gray, yellow, cyan, green, magenta, red, and blue. [18] The choice of white or gray depends on whether that bar's luminance is 100% or not.
While TV programs vary from station to station, some generalizations can be made. Most commercial television stations sign on between the hours of 4:00 a.m. and 5:00 a.m. every morning. Early morning hours are dominated by news programs, and these run from around 9:00 to 9:30 a.m. They are then replaced by late morning shows that target wives ...
Station identification. Station identification (ident, network ID, channel ID or bumper) is the practice of radio and television stations and networks identifying themselves on-air, typically by means of a call sign or brand name (sometimes known, particularly in the United States, as a "sounder" or "stinger", more generally as a station or ...