HDTV_Challenged,
You might want to see if the output settings on the cable box are 1080i or 1080p. SD-to-HD content is being upconverted; the result is common since you're going from roughly 480 lines of resolution to 1080 lines of resolution; it looks like you zoomed in too close on a digital picture on a computer, because that's essentially what is happening.
There are several reports of On/Off on the forum, and they're from people who are experiencing a legitimate problem. I don't have numbers or figures. That said, we will cover it for a year.
--HDTech
Just got the LN52A650 (Version 2008.9). After some tweaking the HD content looks very good. I am a little disappointed with the fact that SD content is not great and I don't seem to be able to improve it. I understand it is typical for SD content to look worse on a large LCD screen, but I thought this TV would be doing some upconverting and it might acutally look decent. Everything is coming from my cable HD DVR box using HDMI, so any settings I change for that connection affect all content. Any suggestions?
Also, I'm curious as to how common the power on/off problem is. After reading some of the postings here I'm wondering if I should expect some problems about a month out?

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