I have been running my PS3 via HDMI to my 1080P LCD for six months now. In the last couple of days, there has been some very noticeable artifacting (I guess that is what you would call it) on the TV.

I tried swapping HDMI ports on the TV, turning the TV on long before the PS3, holding down power for ~5 seconds until it gives the single beep indicating a video setting reset, and swapping HDMI ...