No. Your SD digital cable box will output Standard definition to your analog tv. If you do not have a cable box but have digital cable direct into your tv then you need a digital tuner. This does not need to be HD for Standard definition. If you do have a HD digital cable box then Yes you need a HD tv to view the HD channels.
No, HD televisions do not require a digital tv converter. Older analog television sets will require a digital converter box. You will still be able to use your television once the digital conversion box has been installed.
The set has to be built as a HD set to start with, there is no HD switchover.
Older TV can receive digital cable although they may not display in HD
No. All satellite TV is digital now. Some satellite TV is HD now, and more will be switching from HD to "standard" resolution. The February 2009 analog-to-digital switchover in the United States has nothing to do with HD. The digital conversion changes the format of the over-the-air broadcast channels from analog to all digital. But if you have satellite or cable TV, you don't get "broadcast" signals anyway.
You will see a difference beteween a regular and HD digital video camera. HD offers sharper imaging quality and you will see a difference in picture quality even if you don't play it on an HD TV.
yes. or to an inside roof antenna. You will get HD only if your antenna is tuned to a station broadcasting in digital HD, and if you TV has a digital tuner.
Digital full HD
480i , 480P ,
A digital TV is a normal non HD television. They aren't as easy to find now a days because everyone wants HD TVs now, but they can be found in used electronic stores.