Recently, I left my PS3 on for a few hours and walked away. It has always dimmed and brightened to prevent the "shadow" on my TV. When I came back, there was clearly my PSN 'box' with my name and comment engraved in a shadow that is noticiable in the background. What gives? Is there any way to get rid of this??
best way to try to remove the burned in picture is to run a channel with a lot of frame activity, like an action movie or even the classic "snow" channel.
You must have an older LCD/Plasma screen
the PS3 will dim its video a bit to try and reduce any potential burn in, but if anyone logs in or out, the "screen saver" stops and you'll get the bright image.
Turning off your TV if you're going to be away for a good while helps.... also setting the PS3's auto-off feature will help as well
Quite rare, but buggy panels can cause stray charges to remain, causing those artifacts you saw. Should go away though.