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2. Television - Wikipedia

   en.wikipedia.org/wiki/Television

   Television ( TV) is a telecommunication medium for transmitting moving images and sound. Additionally, the term can refer to a physical television set, rather than the medium of transmission. Television is a mass medium for advertising, entertainment, news, and sports.

3. History of television - Wikipedia

   en.wikipedia.org/wiki/History_of_television

   Family watching TV, 1958. The concept of television is the work of many individuals in the late 19th and early 20th centuries. The first practical transmissions of moving images over a radio system used mechanical rotating perforated disks to scan a scene into a time-varying signal that could be reconstructed at a receiver back into an approximation of the original image.

4. Television antenna - Wikipedia

   en.wikipedia.org/wiki/Television_antenna

   A television antenna, also called a television aerial (in British English ), is an antenna specifically designed for use with a television receiver (TV) to receive terrestrial over-the-air (OTA) broadcast television signals from a television station. Terrestrial television is broadcast on frequencies from about 47 to 250 MHz in the very high ...

5. Analog television - Wikipedia

   en.wikipedia.org/wiki/Analog_television

   Analog television. Appearance. Early monochrome analog receiver with large dials for volume control and channel selection, and smaller ones for fine-tuning, brightness, contrast, and horizontal and vertical hold adjustments. Analog television is the original television technology that uses analog signals to transmit video and audio. [1]

6. Digital television - Wikipedia

   en.wikipedia.org/wiki/Digital_television

   Digital television ( DTV) is the transmission of television signals using digital encoding, in contrast to the earlier analog television technology which used analog signals. At the time of its development it was considered an innovative advancement and represented the first significant evolution in television technology since color television ...

7. Cable television - Wikipedia

   en.wikipedia.org/wiki/Cable_television

   Cable television. A set-top box, an electronic device which cable subscribers use to connect the cable signal to their television sets. Presented unit is a Cisco RNG200N for QAM digital cable television system used in North America. Cable television is a system of delivering television programming to consumers via radio frequency (RF) signals ...