Digital TV - What Will Change?
Digital television (DTV) is used for broadcasting and receiving moving pictures and sound by means of digital signals, in comparison to analog signals used by analog (traditional) TV. DTV uses a digital form of data, which is digitally compressed and requires decoding by a specially designed television set, or a set-top box, or a PC fitted with a television card.
Digital television has several advantages over current analogue tv, the most important being that digital channels take up less space. This means that digital broadcasters can provide more digital channels in the same space, provide High-Definition digital service (HDTV), or provide other non-television services such as pay-multimedia services or interactive services. Digital television also supports features such as electronic program guides. The sale of non-television services may provide an additional revenue source. Also digital tv offers more improvement in terms of image, audio and reception which is essential if you are looking for that home cinema feel.
However, digital television picture technology is still in its early stages. Some digital image sequences may have distortion or degradation such as incorrect color, blockiness when high-speed motion is depicted, or a blurred, shimmering haze. This however is being reduced and corrected all the time.
There are a number of different ways to receive digital television. Most people receive digital television via a set top box, which decodes the digital signals into signals that analog televisions can understand. These types of TVs are known as DTV monitors (HD monitors in the case of HDTV). With the recent introduction of the new style led tv things are really moving on with tv technology.
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