whats the difference between HD and digital TV or both together?

Answer 1

If you're buying a new tv get with one with HD (High Definition) and Digital built in.

Answer 2

HD television is always digital TV, but digital TV is not always HD.

The difference is in how fine of details are displayed on the screen. If you took a magnifying glass and looked at an image on a conventional or Standard Definition (SD) TV, you would find the image is actually a series of horizontal lines. If you counted them you would find (at most) 480 horizontal lines.

If you do the same on an HD signal on an HDTV, you would find more lines, probably about 720 or 1080 of them.

(The numbers above are for the USA, they could be a bit different in other parts of the world)

Answer 3

If you have an HDTV, and you have an HD-Digital Cable box, your TV will display both the HD & the Digital signal just fine. Most cable packages
don't have all HD channels. Some are digital. The picture won't be quite as good on the digital channels, but not too bad.

Answer 4

Digital TV broadcasts differ from HD. If you have a HD source such as sky tv with hd channels and if your tv and all the connections are hd then you can view hd.Obviously the quality of your TV screen and color preferences make a difference.

Answer 5

digital TV can accept a high definition signal but it will not be shown in HD I believe it is shown in enhanced definition only because of the tvs inability to display 720p or 1080p, you will also end up with a 4:3 aspect ratio which will end up with either black bars on the top and bottom or the picture will fill the screen but you will loose 33% of the information on the sides because HD is broadcast in 16:9 (widescreen)
In a true HD tv you will 1) fill up the screen (on real HD broadcasts) 2) accept 720p or (1080p if tv is designed for it) 3) impress your friends with a cool tv

Answer 6

HDTV or HD is a higher resolution format form of digital tv. Digital TV is just the basic format with the same or similar resolution as the old analog format.

Analog 4 by 3 aspect: 640 pixels by 480 pixels, 480 active lines interlaced (scans odd then even lines) -- Only way old TVs work in the United States

Digital 480i, 4 by 3 aspect: Same as above also known as SDTV, standard definition (digital) television, interlaced scan -- Programs retain same aspect so existing equipment can be used for TV production also four channels of programming can be fit into one tv channel for more programming per day.

Digital 480p, 4 by 3 aspect, Progressive scan DVD players -- Reduced blurrying on fast images on monitors that can actually progressive scan. Easier encoding for the computer systems that probably are used to produce DVDs and the content (programs) that are on them.

HDTV formats: 720p, 1080i for broadcast and 1080p for high definition DVD players and gaming systems (usually in 16 by 9 aspect so only those numbers will be shown)

720p: 1280 by 720 pixels progressive scanned (all in lines scanned from 1 to 720 in order, non-interlaced) -- Less resolution than 1080i but the only progressive scan format compatible with United States ATSC standard broadcasts that is still High Definition.

1080i: 1920 by 1080 pixels interlaced scan (odd then even scan of lines 1 to 1079 and 2 to 1080) -- higher resolution than 720p but interlaced so can suffer somewhat on fast moving video (image distortion due to half the image being scanned 1/60 of a second earlier than the other half).

1080p: 1920 by 1080 progressive scan (lines 1 to 1080) -- Only available on computer gaming consoles and HD-DVD or Blue Ray DVD players capable of such resolution

Answer 7

HD means high definition. This means you get a better and clearer picture with more detail. But to get the better picture you will need to subscribe to sky with high def services.
Where as digital tv is a wider range of channels sent out on a digital wave. In the Uk we are switchin 2 digital and turning off anologue.
If your buyin a new tv get one with digital but it doesn't have to be high def