Second 50GT50 buzzes with bright content.....how frustrating.....

Twist!    One review does mention the buzzing.  It took me three attempts to get a quiet one!  Good luck.  

Mine doesn't buzz, or I've never heard it anyway. All plasmas buzz, but I've had 3, and I've never had the tv so quiet that I've heard it.

They say the further from a wall the better, so if you could move it bit further from the wall, it may improve. 

Any DSE?

Gel: twist I shall....can't live with it I don't think...

BBB: not looked for that yet....just set up today so maybe watch the match tomorrow and see....will report back if I see any.....

unable to move further away from wall....but would some kind of sound absorbing material on the wall work? Is there such a thing?

Mine buzzes a bit, but it's only audible on anything approaching a pure white screen at very low volume levels. I don't regard this minor buzzing as a deal breaker, though I can't say how my GT50 compares with yours. I also think any buzzing has decreased as the TV has slowly bedded in.

Bedding in doesn't reduce the dirty screen effect, though; in my experience, it gets more pronounced with time.

Acoustic panels will help. You'll have to decide whether they're an acceptable living room design statement.

People have used noise absorbing things like blankets behind the TV with good results.

These may help:

http://www.ehow.co.uk/how_7641040_stop-plasma-tv-buzzing.html

http://www.ehow.com/how_10015488_reduce-plasma-tv-buzz.html

http://www.avforums.com/forums/plasma-tvs/878642-panasonic-plasma-buzz-f...

beleve it or not it can be to do with placement and room acoustics the same as speakers.

Pioneer told me this when I first got my LX5090 and I thought it was cods wallop.

My set used to buzz loud and was clearly audible in quiet parts of films - now its up on the wall and my room acosutics are much better and there is no buzzing at all - I mean literally none

I think it echos and makes it louder  - hence why some people dont hear it and others do but all sets do it.  If its near glass or windows or such like or in a hollow room with minimal sound absoprtion from sofas etc it makes it worse.

I dont know this to be true exclusively but it is my experience with the LX5090

Ellisdj:

so do you think it's quiter closer to a wall?

i wonder how many people with no buzz (that's loud enough that is) have the tv wall mounted?

I'll keep count.....

'One.....ha ha ha'.......(who's old enough for to remember that one?)

Agreed, whoa there. A few posts from now we'll be stuffing cushions behind our plasma TVs to assess their noise dampening abilities.

If you've been bothered by buzzing with two plasma TVs, you'll likely be irritated by the same problem with others.

How serious is the buzzing? Can you only hear it on a full white screen, or does it constantly intrude on viewing?

If it's the former, I'd guess the buzzing is pretty normal. This will reduce a little with time (at least that's been my experience with four Panasonic plasma TVs).

If it's the latter, this may indicate a more serious problem.  

It's with bright scenes, all white scenes are loudest and its also is the same with tennis and a bit less with football.....and I do have extremely sensitive hearing....but I still find it sad that they can't fix it, it's is rubbish that you can't watch at a volume of 20 to 25 without the hearing the buzz over the sound....

i may wait for a GT60 as I'm sure all GT50 are much the same.....if the 60 is the same then what more can I do other than try and dampen the buzz in sme way but at least I will then know its my only option....

strapped: what does DSE look like? Does it effect people's faces? While watching Avengers (sky HD) many faces looked sunburned or lacking detail? Not when close up though...?

What you're describing isn't DSE; it might be dynamic false contouring (people's faces break up into green or purple contours during pans). Dynamic false contouring is a problem with all plasma televisions (like line bleed), but I find it less disturbing than LCD/LED motion problems. 

The dirty screen effect manifests on the GT50 as vertical (slightly ragged) columns of lighter and darker colour gradation, typically across the right hand side of the screen. If you're watching the football right now, watch the right of the screen during camera pans. If your TV is affected, this will show the problem up.

You can also go into the software update screen and check whether grey is uniform across the panel. A full grey slide will show this up more clearly, if you download one and put it on screen via USB. 

Can't see any DSE....

Do you want to swap tvs, mine doesn't have any buzzing?