So, I just got my 64F8500 set up today and got the directional buzz. If I sit directly in front of the screen, it is VERY LOUD. Loud enough to be heard over MOST content, unless the content is itself very loud.
If I stand up or move just to the left or right of the screen, there is 0 buzz. I can't be in front of any part of the screen, I have to be completely to the left or right of it, so that if I look straight ahead, I'm looking at the wall.
I had to change where I sit so that my seat is off to the side and I watch the TV at an angle. I just moved, so it isn't a dramatic event to change where I sit, but it is annoying.
Also, it's annoying that if I move to the side to do anything, I'm back to being blasted with the buzz.
It is really loud. Someone suggested mounting the TV on the wall so that I can tilt it downward slightly, which would redirect the buzz at the floor, rather than my couch. That would probably work, but I'm in an apartment and I'm not sure I'm allowed to mount a TV on the wall.
I've only been watching TV for about 2 hours and the PQ is amazing, but all I can think about is this damn buzz. I don't know if this is the kind of thing one gets used to, as opposed to being something that only gets more and more annoying. Since they're all sold out, I don't see an exchange being an option. Also, I'm not sure the place I bought it from has the best customer service. I could probably return it, but then do what, get an LCD? Yuck.