If your audio and video seem to be out of sync try the following:
- Change the content/channel to confirm that it's not happening specific to what you are watching. If it is, then it's likely coming from the source that way and just wait it out.
- Sometimes a simple source switch on Control Center from one device to another, and then back can alleviate an A/V sync problem.
- Restart Control Center and your audio device (AVR/soundbar), if applicable
- Check the A/V sync setting on your soundbar, receiver, or TV. There may be settings where you can adjust, in milliseconds, the audio video sync so that any lag between devices is taken into consideration.