Did you say your TV speakers get further and further out of sync? Why are they even being used when you say you have a Panasonic surround system(?)
Last year the PVR that I was using died , so with the cost of Power rising I thought I would get a New TV as well .
Something a little cheaper to run with more HDMI ( x3 )inputs .
so I decided to try one of these new TVs a Vaili V32LEDF with PVR record function .
After about a week of trying to come to terms with the new TV recordings .
I brought a new PVR , a Noontec V9s a week later .
It is a nice unit , It has dual HD tuners in it for twin recordings .
Well everything was going along nicely until the Availi developed a problem ,
the background behind the menus disappeared , so off for repairs it went .
I got it back from repair and 2 weeks later the problem reappeared , back to repair service it went again .
After 4 weeks there , the service guys told me that they couldn't fix it and I was offered a replacement or refund .
The Vaili was out of stock when I went back to the store for a replacement .
So I decided to spend a few more buck and get a bigger screen .
So I ended up getting a 38.5 inch TV ( wont mention the brand at this point because I am locked into a dispute with the store about this )
I wish to point out a this point ,
that I have had 2 different TVs and been running the Noontec and a Panasonic DVD Home Theater Sound System SC-PT550
into both of them via HDMI and have NOT had any problems ,
the audio has been in sync using HDMI inputs on either TV .
My Problem has arisen since got another TV .
What happens is the audio gets longer behind the video signal and after an hour or two it is quite noticeable .
The longer I watch that HDMI input on the TV the further the TV's audio( speakers ) are out of sync .
Turning the TV on and off resets it
and changing HDMI inputs resets it as well ,
but this does not cure the problem .
I run the following inputs in to the TV .
HDMI-3 PVR Noontec V9s
HDMI-2 Panasonic DVD Home Theater Sound System SC-PT550 .
HDMI-1 WD Live TV hub .
Now what I also do is run the Optical audio output of the PVR Noontec V9s > the Optical input of the Panasonic DVD Home Theater Sound System SC-PT550 .
and the WDLiveTVHub audio transfers via RCA to RCA connectors to the Panasonic DVD Home Theater Sound System SC-PT550 ..
So that way I have the option of using the sound system or the TV speakers .
the interesting thing is that while the TV's HDMI audio is Lagging further and further behind ,
the Optical Signal is not , It stay sync with the screen .
Even the HDMI signal off the Panasonic DVD Home Theater Sound System SC-PT550 to TV has the same problem .
The TV speakers get further and further out of sync , the longer I watch it .
As for cabling I am using 3 meter HDMI cables , they are all rated 1.3 .
The TV has 3 settings for Audio input .... OFF , PCM or Auto .
I have tried all of them and the results are the same .
Can anyone offer some advice or solutions to my problem ?