teleview

-->ALL<--> antennas are HD antennas.

Antennas made out of wire coat hangers are hd antennas.

A piece of wire is a hd antenna.

The human body is a hd antenna.

One part of Digital Broadcast and Digital reception is HD High Definition.

Here are the definitions/resolutions/clarity of the picture.
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Low definition 480i. This is the Analog Broadcast and Reception that was transmitted for 70 years , when it was new , it was HD transmission and reception Television.

Now Digital processing is used to 'clean up' the 480i.

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Improved definition 480P , as a reference point of clarity , Non HD - DVD's are 480P

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High definition , Broadcast and Reception.

720P. As a point of reference , FOX transmits 720P as there HD picture.

1080i. This currently the highest definition for Broadcast Tv transmission and reception.
Tv stations can transmit 1080P , currently non are.

1080P. As a point of reference for clarity of the picture , Blue Ray is 1080P.

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When Digital Broadcast Tv Transmission and Reception was new just a few years ago.

A popular topic on the Digital Tv forums was ,

Can you see any differences of clarity of the pictures of , 720P , 1080i , 1080P.