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In Reply to: Is an HDTV set required to maximise current DVD format? posted by Ted33 on November 5, 2002 at 13:58:14:
The salesman probably said what he did because most HDTVs can accept progressive signals from a prog-DVD player...progressive scan gets rid of those annoying scan lines present in the image of regular TVs, and, in theory, displays a smoother, more detailed, more filmlike image. Almost all HDTVs also have an internal line doubler, which takes interlaced (regular) signal from a non-progressive DVD player and upconverts it in the set, again the result being no scan lines.In actual practice, the quality can vary - not all progressive players, nor all doublers, are created equal. (A bad doubler can even make the picture look worse in some cases by adding or accentuatung digital artifacts.) You may or may not consider the capability to be worth it on a small, direct view set. The main benefit, beside being able to receive hi def programming with a set top box or OTA tuner, is that the line doubling, either by the player or HDTV, eliminates those pesky scan line. Done right, it can look wonderful. Certainly by the time you get to large displays, you want an HDTV - scan lines on a big set are unwatchable IMO.
In theory, the top of the line HDTVs also have better picture quality features that will enhance DVD viewing - 3:2 pulldown, raster squeeze for more resolution on letterbox DVDs, ability to defeat SVM, etc. (Though, in truth, a few non-HDTV sets have these features as well.)
I just bought a 34" direct view widescreen HDTV, and one of the reasons I got it was the great DVD picture using the set's internal line doubler, even though I have a progressive player (RP56 - I reset it to interlaced instead of progressive).
This is the short, oversimplified explanation. Go to avsforum.com or hometheaterforum.com to the FAQ if you really want to know. Or just go down to your local Circuit City and look.
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