While watching tv it will shut off by its self.then when i turn it on the picture will get bigger.this happens on and off during the time the tv is on.some times it wont turn back on unless you unplug it first. thank you.
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I have the same issue on my Vizio M470NV. I called Vizio and they told me it is a self diagnostic test that is shutting down the TV automatically to protect it. They said they are working on fixing the issue with a firmware update that will be pushed out automatically if you are connected to the internet. No ETA given on when that would happen. I called them on the 3/14/11 and my TV is still shutting down randomly.
Yes, you can adjust the picture by using your remote going to settings, or "Adjust" when your t.v. turns on and off by itself could have'ft to do with nasty weather near you, or the cord is loose and it needs to be pushed in all the way.