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You won't see an HD program unless the actual show is being broadcast in HD. All of the channels are up in the 500's where I live and say "HD" in front of the stations regular initials (Time Warner). Be advised there are only about 15 of them altogether. Very disappointing. I too was disappointed with the low quality of some of the broadcasts, especially if they are old movies etc. I can actual see the digital squares. That's a sign of a poor signal. Along with the mouth movements are not in sync with the voice. Thank the US government for digital.
Found this on a forum somewhere. Clear Voice II is probably turned on. When this feature is on, SRS TruSurround is not available. You'll have to turn off Clear Voice II to enable SRS TruSurround. Someone mentioned that once you turn on TruSurround you can then go back on turn on Clear Voice again.
make sure the dish network menu settings in setup under audio are on high. Some tv's require it to be off. Try both and see what works. Also the delay is caused by digital conversion. new stereos have settings for this delay and they have delay boxes for sale online. You could try to change your delay settings on your stereo surround to help. I had to do this.
Up front, i copied this from another site, so kudos to the OP there if this works for anyone...
This same problem had been bugging me when I bought my LE37B650,
everyone suggested adjusting the delay time on my AV amp but
unfortunately mine does not have this function.
Anyway I finally fixed the problem using the following steps
Before you start make a note of your menu settings as you will have to reset them after this procedure
Turn off the TV then press Info -> Menu -> Mute in sequence then
turn the TV back on again. This will get you into the secret Service
Menu. Go straight to the AUDIO page of the menu. Don't be tempted to fiddle with things in service menu cos you can end up in a right old pickle!
In the AUDIO page you willl notice that there is a time delay set for
the internal speakers of 100ms but for some reason this is not set for
the external output so all you need do is dial in a 100ms delay there
and that should sort the problem. Well it fixed it for me.
Note that as soon as you enter the service menu, all your other
standard menu settings are lost and the screen will be set to dynamic
for some reason so you have to go through and change everything back
after you have done this.
Hope this Helps
Original link: http://www.hometheaterforum.com/forum/thread/280579/audio-delay-on-samsung-650-lcd-tv
This would suggest that you CAN fix the problem with an analog amp.
Also interested to see if a 2 year old thread is alive!
Happens mostly on your local channels right? This is a issue with the local broadcaster and not directv. Due to the digital transition this has been a widespread issue. Until the local affiliate for NBC, ABC, etc. fully transmit a digital signal then this sync problem is to be expected.