First time poster here, though I've lurked quite a bit. After a lot of time spent researching and pondering my first HDTV purchase, I decided to go with the Sharp 40" 810. I've been happy with it overall, but there have been a couple of issues, and since there seem to be some knowledgeable people floating around in this thread, I thought I'd ask about em here.
I checked pretty extensively for clouding/flashlighting, and only found a little bit. It's not too bad, and is really only visible under pretty specific lighting conditions. For just this, I probably wouldn't take the TV back. However...
Major problem #1: this is the most important problem. The audio and video are out of sync. I've seen some people talk about this issue in this thread, but it seemed like a firmware upgrade solved that problem. Well, I've updated the TV to the latest update, but the problem persists. Specifically, the audio lags behind the video slightly (so that it appears people begin moving their mouths a half a second before they actually speak). This has been happening consistently with multiple sources (computer, PS3, etc... I first noticed it while watching Blu-Ray movies on the PS3).
Major problem #2: this is a weird one. I hooked the computer up (using the 2nd of the two DVI-out ports on the video card) to the Sharp using a single DVI to HDMI cable. If I use the TV in "Dual View" along with my LCD monitor, everything is just fine. However, if I set the TV as the only display, then it's not so fine. Every few seconds, there is a sort of visual "hiccup"; everything freezes for less than a second, then jumps ahead just slightly as it resumes. This is, of course, hard to see when typing or browsing the web, but it was quite noticeable (and distractingly annoying) when watching any kind of video. And I'm talking about locally stored video files in iTunes or Media Player, not streamed stuff, so there's no internet connection issue interfering here. And again, this is only when the TV is used with the computer in Single Display mode; this problem does not crop up when I use both the TV and monitor in Dual View, nor have any problems like this come up when using the TV with my PS3.
Any thoughts on how I might try to solve either of these issues is appreciated! I'd rather not go to the hassle of lugging this thing all the way back to Best Buy, but I will if there's no way to fix these problems.