Why do little boxes come out when watching Cable tv and a blue-ray movie?

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beeto

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I have a Samsung LCD HD series 7 TV, i just noticed when watching HD broadcasting and watching Blue ray movies on a blue ray player, I can see little boxes in black areas of the movie, like a shadow. Just like watching a bootleg movie on and the colors dont look right, thats how my LCD is starting to look like. It wasn't doing it b4. Anyone know the reason why?
Is there anyway to fix that myself or do i have to take it back to get it serviced?
 
It's pixelation - a pixel is one little block of light, or data.

Either your TV system cannot process all the data being sent fast enough, so it skips some every so often and the result is a missing pixel,

Or, the source is missing the data - a bad spot on the disk, or the signal not being complete, again resulting in a missing pixel.

With old analog, you either wouldn't notice this, or it was the static in the picture. With digital, its either there, or not there, and the not there signal results in the missing pixels that you notice every so often.
 
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