When TV is first turned on, it starts out black.  As it warms up many pixels begin to fill in properly just enough to be able to read "no signal" on a blue screen.  If you give a signal such as a movie through HDMI you may get what looks like a black screen with growing white ink blots randomly placed on the screen.  (please view attatchment)
Does anyone know what can cause this?  I walked out of the room when it was working fine and came back and it was no longer working.  I have tried to test power supply but I don't know what all of the values are supposed to be in whatever state.