Remember my whinging about the tv getting ready to leap off the bridge?
I went behind the entertainment center, and decided to dust off the tv, because who knows how long THAT hasn't been done? and ever since, it has been working just fine. I guess it was just heating up. Still, want a new tv that is smaller, lighter, and wider. ;)
Or, for all I know, I wiggled the video cable from the receiver just right.