Why digital TV is better than analog TV?

Answer 1

Digital television is not so much an invention as development. There are several factors that have supported the introduction of digital television. Looking at the question from another perspective, digital television has only recently been available for consumers because the cost of computing hardware has been prohibitively expensive until recent years. The rapid decrease in the cost of large and complex electronic circuits over the last decade has enabled viewers to make use of digital television at a sensible cost. However, digital television has been around for 30 years. The early digital effects units made an entrance to the television production scene during the 70s and have been improving ever since. A DVE is the device used to resize, reshape and manipulate video images and today it is used on virtually every production in some way. With more and more digital equipment available for production, almost all broadcast studios now use digital signals from the camera to tape. The final program is archived on disc rather than tape in most modern facilities so the final link to the consumer inevitably was to become a digital signal. Digital storage has enabled quick and simple re-purposing. This is the process by which a program can be broadcast over traditional links to a television and also formatted ready for broadcast over the internet, to Ipods or to mobile phones. The formats are very different but digital storage is the starting point for the formatting process. It has also enabled video on demand services that would be impossible with analog storage and transmission Television and computing are converging. Computer data and Internet communication is digital and as television is sharing many of the same lines, digital data makes it far easier to combine both services. As a result, a single fiber or copper link into a house can serve telephones, Internet and television services. The convergence will continue until there is little distinction between data and broadcast. Digital program delivery to homes allows more channels to be accommodated, more additional services to be provided like multi-language content and interactive services. The progression to digital has been planned for many years and we will see more ways to receive television programs in the coming years.

Answer 2

The reason for digital transmission was cited as a method to free up broadcast spectrum and better use existing allocations of rthe spectrum. Using the same frequency range using digital transmission more content could be delivered using the same ranges and for certain spectrum alloactions they existing allocations could be shrunk and more segments licensed out. e.g. (simplified numbers used) 100-200 Might be an allocation for analog broadcast. Provides one channel for television with stereo sound. or 100-200 Using digital broadcast could provide 2 channels. One standard definition and one high definition with full surround sound. or 100-150 For a single station in digital 151-200 for a single station in digital And other various combinations. By going digital they can take advantage of various compression and encoding techniques that were not available via analog broadcast. Additional arguments offered for the transition were far more technical in nature including but not limited to broadcast tower configurations, power requirements for broadcast facilities, better handling of adverse weather, sub channel information (station ID embedded in the signal), and so on.

Answer 3

it isn't, digital tv may seem better and bigger, but with annalog tv's the pixel resolution and picture quality is better.

Answer 4

Check the user's manual. Most TVs made in the last 2 years are digital. For sets older than that, you can find out by going to the manufacturer's web site.

Answer 5

Nice clear pictures.