I have a Samsung LN40A550P3F LCD TV (three years old) and have recently been experiencing some problems with the picture. I first noticed that yellows were tending to look dull and faded to more grayish hues and that bright colors (e.g., lights or flames in videos) appeared to saturate. Faces also seem to be saturating (likely whatever the brightest part of the image is simply saturating) and producing large single-color blotches in the display. Overall, the problem isn't that obvious until something bright is shown and the bright object (light, flame, monitor) saturates its region of the frame.
Also, the menus for picture settings, etc., seem terribly dulled, grayed, and as if the resolution is too low. Interestingly, if there is a bright and saturated region on the screen and I bring up the picture settings menu, the gray-blue translucent frame of the picture settings menu overlaid upon the saturated region seems to fix the saturation problem.
Another strange symptom is that when I switched the source from HDMI
(the video I first noticed the problem during) to PC, where my laptop was connected, the last image from the HDMI source seemed burned into the screen despite currently displaying from the PC source. Then as I scrolled around a webpage on my laptop, the past images of the webpage would be burned in/ghosted in the background on the TV screen.
Doing a Picture Reset to the default picture settings did not help, nor did using a more "optimal" set of picture settings, so it appears it is something deeper than a bad calibration, probably hardware.
Any help or suggestions would be greatly appreciated. Thanks!