Sure has been a lot of activity in this thread lately. Ironically enough, this is the first search result that comes up in Google when you search for S30 buzzing issues.
Before I get to that, though, I would like to say that I've owned my S30 since I started this thread, almost a year ago, and the picture has been absolutely pristine. As I mentioned, I ran the D-Nice slides for 100hrs then used the follow up picture settings. I was concerned that since they were for the ST30 it wouldn't benefit me, but a year later I can tell you they worked like a charm. I consistently feel that I have the best looking TV out of all of my friends.
Unfortunately, that utopia was not meant to last, because now I have the infamous buzzing coming from the TV. Mind you, this is ONLY when there's an image of ANY KIND on the screen. Even the built in TV image that tells you there's no signal. If the screen is black with nothing on the screen, there is no buzzing. Volume doesn't affect it. It's very loud, and seems to be even louder when the image is brighter. Hopefully this doesn't affect my Game of Thrones get together on Sunday, haha.
I extended the warranty another 3 years earlier this year, thank god, so I plan to call Panasonic and see what I can do to get it fixed. has anyone else had any experience with this issue and your experience dealing with the tech support?