Hi there,

There are a number of circumstances that can cause the audio and video to be out of sync:

• If watching a TV program, it could be the broadcast itself or a bad connection between your cable/satellite set-top box (if applicable).
• If a DVD or Blu-ray Disc® player is connected, a poor connection or the disc itself could be the cause.
• When connected to a home theater system with a digital optical cable, then there may be an audio delay that requires a manual adjustment on the home theater system. There may even be a setting on the TV itself causing this issue.

NOTE: Because each of the steps below represents a possible solution to this issue, check if the issue is resolved after completing each step.

1. Make sure that the TV has the latest system software (firmware) installed.

   NOTES:

   • Not all TVs have software that can be updated. To see if your TV can be updated, check the specifications. Go to Manuals, Specifications & Warranty.
   • If the TV is connected to a high-speed Internet connection, a software update can be downloaded from the menu of the TV. Go to Drivers and Software.
2. If watching a TV program, try changing the channel to see if the problem occurs on other channels; if it only occurs on one channel, then the issue is with the broadcast.

   NOTE: If the issue occurs on one channel only, contact the broadcast network provider.

3. Make sure all cables are securely connected to the TV and the source device (set-top box, DVD player, Blu-ray Disc player, home theater system, or game console).
4. Try playing a different video source to determine if the issue occurs with other connected devices.
5. If your TV has a Game Mode setting, do one of the following:
   • Set the Game Mode to Off when watching TV or playing a DVD or Blu-ray Disc.
   • Set the Game Mode to On when playing a video game.
6. If issue is happening when using TV speakers, perform a power reset on the TV.
7. If there is a home theater system and a digital optical cable is used in the connection, manually change the Audio/Video Sync or Audio Delay setting on the home theater system (if available).

   NOTES:

   • Audio delay adjustments usually range from 0ms to approximately 250ms.
   • For information about the availability of A/V sync or Audio Delay setting, refer to the operating instructions supplied with the product. Go to Manuals, Specifications & Warranty.
   • For a third-party home theater system, check the instruction manual or contact the manufacturer for information on how to adjust the A/V sync setting.

If the issue is still unresolved, service may be required.

I hope this helps and welcome to the community.

Best wishes,

M