8/27/2009

Plasma lcd tvs...Emperors New Clothes trick?


Is the update an improvement?

I went looking at new TVs yesterday and noticed that the pictures on screen look pixelated and fuzzy on even the highest quality (and price) TVs .
Am I seeing something nobody else is? My 8 yo TV has a clearer view and no 'fuzzies' .
HDTVs are definitely higher resolution than older standard definition sets. But there are a couple of caveats.

Some stores do not provide a high quality signal to their TVs. They hook up too many TVs to the same document and end up with a degraded signal. Some even have the TVs tuned to non-SD channels (really, I've seen this!). Stores that cognize what they're doing will often have the TVs hooked up to a BluRay player, which's currently the highest quality input.

BTW, RC Willey seems to know what they are doing with HDTVs. The TVs in their showrooms are well set up and their sales staff is *very* knowledgeable, unlike some other major retailers I know. If they are in your area, check them out.

Also, if you're looking at a 55 inch TV, don't stand 4 feet in front of it. It's bound to look fuzzy. They should be viewed from a distance that is 2 to 3 times the screen diagonal.

Yes, the update really is an improvement and what you probably experienced is one of the things that high-definition TVs can do: bring out and essentially the worst in already outdated content.

For example, if you watch an already grainy, old camcorder-recorded 480i signal on a 1080p set, it will just magnify what is already poor content.

To see the best of what a plasma/lcd can do, it needs to be fed high-def signals like 1080i or 1080p.

Another thing to remember is that a TV- may it be plasma, lcd, crt, projection- is always set-up poorly on the showroom floor (e.g., brightness is blooming, auto resolution adjustments mode may be turned off, etc.). Also when you're at a store and completely the TVs are set-up to show the same content, sometimes they are daisy-chained together via a weak cable like RCA then the signal is distributed by an old receiver that does not do the content justice either.

Best thing to do is ask them to pop in a dvd or blu-ray directly to the set you're looking into and adjust the settings yourself.

If the material they are showing is old and bad quality the new tv will brigh out the worst picture. Unless you had watched an LCD with fast moving item which can make it blurry, the LCD tv have motion blurness while the Plasma tv does not. To reduce the blurness you'll must get the 120HZ or 240HZ refresh rate but comes at a higher price. I would put my money on a Plasma instead of an LCD or LED tvs. From all questions in yahoo more problems with LCD than Plasma.

If the HDTVs are fed SD images then this could well happen. SD images are 4:3 in aspect ratio and 720x486 in resolution. But your HDTV is going to be 16:9 in aspect ration and 1280x720 (or something close to that) or 1920x1080 in resolution. So you have a discrepency between the two. As a happen some form of up-scaling and/or distortion will occur. This will in turn cause a big of softening of the image. Its different in each case and the severity of image degrade will vary.

But an old CRT (tube) set is a SD aspect ration and resolution. So it will playback SD content vastly better. The HDTVs can not match the CRT in SD playback.

But HD vs SD, HD is way sharper and better looking. Watch a new visual effects heavy movie in BluRay and on a standard DVD. The BluRay is clearly a step above. But as we transition things from SD to HD, there's going to be still SD stuff around or stuff that is exclusively so-so processed for HD which just won't look that great. Its just part of the landscape we have to deal with.

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