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The concept behind the ubiquitous box in the corner of the room dates back 120 years. In 1884, Russian-born Paul Nipkow invented a scanning system which dissected a scene into a pattern of pixels, or ‘picture dots’ which could then be transmitted and reproduced as a visual image. The world's first public demonstration came in 1925 when John Logie Baird showed his television system in Selfridge's department store, London. Three years later he sent the first ‘intelligible’ TV signal across the Atlantic and the BBC began experimenting with television transmissions in 1929 (Crisell, 2002). Baird's system ultimately lost out to a more sophisticated one developed by EMI but the BBC claimed the credit for the first high definition service transmitted from Alexandra Palace in north ...

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