There are firmware updates for that issue. However, some lip-sync issues not because of the TV. They are caused by the cable/satellite box and or a home theater amplified speaker setup.
I can help you find your firmware version by using only an LG remote. You will need a pen and paper before you start.
1. Turn the TV on.
2. Select the menu button to go into your TV menu.
3. Now move the highlight to the Toolbox but do NOT select it.
4. Now push the #7 on the remote seven times and wait.
A display will come up and show you your Firmware information.
5. ****Do not power off the TV. You have to use the Exit or select Cancel to correctly get out of this Service menu.
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Send me the complete Firmware information (V2.1.01) from your screen and your complete model and product code from the back of your TV(47LH30-UA.AUSJLUR).
Or you can call LG service and they can perform the updated firmware if it is needed.
Vizio HDTV- Lips out of sync
Anyone with a new Vizio E601i-A3 60" or 70" HDTV that is
having audio "Lips out of sync problems" with a cable or satellite box.
On Comcast cable boxes (or others), here's what you need to
do: FIND MENU for AUDIO or HDMI setup on
CABLE BOX or Satellite Box.
FOR COMCAST
1. Turn on TV and have Cable box Turned OFF.
2. Press MENU on COMCAST REMOTE.
3. Go to AUDIO Setting OR HDMI Setting. (On cable or Sat.
BOX)
4. Change setting from Auto to L-PCM. (Turn off cable box to
exit)
This should resolve any "out of sync" lips to picture after
commercials on HD channels.
*This is a handshaking issue from the cable box to the Vizio
E601i-A3
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