We are currently having this issue but it comes and goes. It is also on a new Vizio. Just tonight, it was out of sync, went to commercial, one commercial out of sync, then everything was fine again. Seems to run in waves. Still need to watch other TV's in house to see but I don't seem to remember it happening on other Vizios. We only have the Comcast main box, no DVR, and the smaller additional boxes on our other two TV's. Just curious of others are still having this issue. We haven't tried to contact Comcast yet as calling and talking to someone is always such a hassle. Thanks for any input!
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