Digital television (DTV) broadcasts and receives digitally, in contrast to the analog signals used in traditional TV. DTV, which can be received in standard-definition or high-definition formats, uses digital modulation data. This data is digitally compressed and requires decoding by a specially designed television set or a standard receiver with a set-top box. DTV’s rapid growth in popularity is spurred by high-definition video quality as well as the availability of a variety of new features and services, including video on demand (VoD), gaming, security, PVR, interactive TV, merchandising and Web browser capabilities.
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