Buying an HDTV can seem an intimidating task. There are so may
different types on the market, with so many different features and specifications that just knowing where to start can cause headaches. However, it doesn’t need to be painful. By following the five steps below, you can make buying an HDTV easy and even pleasurable until the credit card bill arrives, of course.
1. Check the resolution
If you’ve done any research into HDTV, you’ll know that the HDTV specification
covers two resolutions: 720 lines and 1080 lines. So any TV which claims to be
HDTV ready must have a native resolution which has at least 720 lines (this is
usually the second figure quoted. i.e.
The Signal Formats in a Home Movie Theater System ...signals contain a stream of data feeding a CRT television the needed information on how to paint the lines on the phosphor screen, which is known as the picture tube. The downside to analog video signal is that once signals ...
if the resolution is A x B, B is the number of
lines.) However, a vertical resolution of more than 720 doesn’t necessarily mean a
TV is HDTV ready. The HDTV specification states that high definition TVs must
support 16:9 widescreen signals (where the width of the picture is 16/9 its height).
That means that in order to display a signal with 720 lines, a TV must have a
horizontal resolution of at least 1280 pixels (720 divided by 9 and then multiplied
by 16)A TV with a vertical resolution of 768 pixels, should have a horizontal
resolution of 1366 pixels.
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