2 things come to mind....
1. signal strength and quality
2. disable "fast zap" (I have no idea what that is but it solved my pixelation issues. Others have mentioned it here).
Not sure your image so cant help as to where to turn off fast zap but it ti in the menu/setup/User Interdace Settings/OSD options/Enable Fast Zapping
in Jade Pli image.
good luck
porkop
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