I'm brand new to the forum, but this seems to be the place to get answers. I have a 55-inch Mitsubishi HD 1080 series RP TV I bought 4 years ago. The TV frequently pops in and out with an unclear convex image at the top and bottom of the screen. Sometimes it "pops" back into proper alignment, but most of the time it just looks bad. Also, it occaisonally does what I call "spaghetti explosion" (squiggly lines all of the screen for 3 or 4 seconds). Does anyone know what could be causing these problems, and how much it would be to have a serviceman fix it? Thanks much!