What is Digital TV and why is it coming contained by 2009?
Answers: Digital TV is the signal that the TV recieves.
It's close to the difference between cassette tapes and CD's, VCR and DVD's, cell phone service w/ static and w/o.
It used to be that the method we'd see or hear information would be on film, or signal, or something analog. Digital take the image and instead of streaming it through a cable it change it into 1's and 0's.
So digital can be computerized, enhanced, compressed, and basically work better because it's no longer a signal, but something more palpable. It also allows for a sharper picture.
Notice if you get really close to a TV, it looks blurry? The strange HDTV's are so sharp, that that's no longer the case. You acquire a picture up to about 3x sharper. Digital cable feed those TV's the sharper image.
Digital tube is nothing save for a new way to deliver content that does not rely on analog technology. By February 17, 2009 all box programming will be delivered via a digital signal freeing up the current analog signal for emergency services and wireless devices. This mechanism if you have a tv short a cable or set top box and it is not a digital television, you will want to acquire a convertor box to receive a signal. If you have a cable or satellite provider they will more than promising handle the conversion for you (and force you to acquire a set top box.) If you already hold a digital ready tube you will also have to do nil. (Note a digital tv is not necessarily an HDTV.) If you still rely on analog tv come 2009 and you do not have cable or a digital tv, the feds are prepared to help you draw from the convertor box you need. Look at www.ntia.doc.gov for the info on convertor box coupons.
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