Dark Colours pixelate on screen

The TV's main culprits to be causing this problem are "dynamic contrast" which maybe darkening the backl light in dark scenes an example a night time or a dark scene in a movie. To make the blacks be deeper (as LCD/LED TV are rubbish at blacks) or brighten it on bright scenes to make the light be lighter and once again to make the blacks be deeper so the images pop out. Also "eco lighting" this will dim or brighten the image based on the amount of light in a room in order to be saving energy. Ether way the easy fix is to turn both of these features off. You will get rid of the problem and enjoy more subtler shades of colour that would otherwise be bleached (brightend) or crushed(darkend) out..

Clean the lens

maybe or maybe not. It is a pixel that is stuck 'on' all the time. Not a warranty claim item as a few bad pixels are allowed.....

It does not spread, but that is not to say that another pixel somewhere else on the screen will not go bad.

My suggestion would be to test your computer using a different monitor. You have to find out whether it is your monitor that is bad or your computer. If you use a different monitor and everything looks fine and you see no dots then you know the computer is fine and it's the monitor that is bad. But if the screen still show dots and lines even with different monitor then your computers video card has gone bad and needs replaced. I would not try to repair the monitor that can be dangerous.
Good Luck
Proteus

Sometimes a technician can make adjustments to the y-sus and z-sus boards on the panel. If that doesn't work then its either replace those boards along with the main driver board or replace the panel. Either way this requires a technician to look at the TV.

You are correct=====Return it ! It's new, you should not have to have it repaired this soon.

sounds like an issue with the tube but you probably wont be able to fix it on your own, i would take it by an tv repair shop, they will determine if its repairable

Sorry, I haven't been on here for a while.
I haven't found the cause. I find that leaving it switched on overnight cures it.

This is a problem we have seen on this particular unit. There are internal adjustment that must be done to correct this problem. This adjust is done on the power supply. There are VS, VE and VA adjust. Look on the interior of the Panel for voltage chart. Adjust these voltage accordingly.

Best regards
Circuitcity

Have a look at my 'I broke the glass post'