| | lawyer YTV_ television - lawyer-report.com (Site not responding. Last check: ) |
 | | The origins of what would become today's television system can be traced back to the discovery of the photoconductivity of the element selenium by Willoughby Smith in 1873, followed by the work on the telectroscope and the invention of the scanning disk by Paul Nipkow in 1884. |
 | | Practical television systems include equipment for selecting different image sources, mixing images from several sources at once, insertion of pre-recorded video signals, synchronizing signals from many sources, and direct image generation by computer for such purposes as station identification. |
 | | In the early days of television, the cabinet was made of wood grain, however, the wood grain was disappearing in the 1980s. |
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