what exactly is HDTV ?

[Sherlock Holmes]

I need to know what exactly it is.
And it burns on what ?
And what is different is between this and DVD.
Tnx in advance

[FreQi]

This might help you find more specific questions...
http://www.hdtvpub.com/articles/whatisdtv/index.cfm

HDTV is a lot of things. There are several ways to get it, and it comes in many different flavors. In short, it is a high resolution feed of television. But that is a very vague definition.

[trbarry]

You might also start with the "Good Questions" HDTV Faq, directly above your post. ;)

- Tom