TVs & Home Theaters forum

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Newbie question about performance

by jhycca / September 17, 2009 6:08 AM PDT

I just brought home an lcd tv for the first time and had a question about how it is supposed to perform. First of all the picture watching HD channels is usually spectacular, I can get enough of it. However, every once in a while the picture loses integrity under certain conditions and I get an outline around a moving person or object, and even pixelation which was particularly intense during one scene where the background was very bright white and moire-like and the subject was moving in front. But then most moving objects and bright patterns are fine, this happens only rarely. So, am I supposed to be getting perfect pictures with zero artifacts all the time or are occasional artifacts like this normal while viewing lcd tvs, or is it the cable reception? Should I return this and try another set? Any information would be appreciated.

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Somewhat normal
by Pepe7 / September 17, 2009 6:21 AM PDT

The cable feeds can vary widely IME. Channel to channel, provider to provider for sure. No HD feeds are perfect, but some come awfully close. YMMV.

It would also help to know which HDTV & Cable box you are using(?)


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Model numbers
by jhycca / September 17, 2009 9:47 AM PDT
In reply to: Somewhat normal

The tv is LG 47LH50 and the cable box is Motorola DCX-3200 Comcast cable, though I noticed the occasional wavy outline happening without the cable box as well.

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If you feel...
by Pepe7 / September 17, 2009 1:11 PM PDT
In reply to: Model numbers

...the problem is happening frequently you could always have them provide a replacement box. They also could check your line & wiring. I've had to swap comcast boxes several times to get one that 'stuck' per se.

The underlying issue is sometimes the heavily compressed feeds they are using to pass sometimes as an HD feed. It doesn't always cut the mustard ;(.


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Cable signal
by jhycca / September 18, 2009 5:53 AM PDT
In reply to: If you feel...

Yes, I think it is just the cable signal, I see it on my CRT as well when I look closely, it's just amplified when you see it on the lcd tv.

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Definitely have a tech come out to your house
by Pepe7 / September 18, 2009 6:41 AM PDT
In reply to: Cable signal

If the service charge isn't exorbitant, it wouldn't hurt for them to check your line/signal quality. (I do realize this doesn't cure poor feeds from the source per se.) FWIW, there was a problem on the pole last year when the Comcast techs were at my home fixing issues with the digital voice service. What they did also seemed to affect my CATV since the PQ was a little sharper on some of the upper channels afterwards, FWIW.


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