The High Definition Television

The expansion of hdtv is High-definition television. The hdtv means television signals broadcast with a higher resolution than standardused to refer to television standards developed in the 1930s to replace the early experimental systems, even though, not so long afterwards, Philo T. Farnsworth, John Logie Baird and Vladimir Zworkin had every developed competing TV systems but resolution was not the problem that separated their substantially distinct technologies. It was patent interference

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