TV audio and video not in sync.

TV audio and video not in sync.

We have the 55" UHD TV with Samsung sound bar. The video and audio are not in sync. It appears to be as much as 1 to 2 seconds differential. We disconnected the sound bar and still have the problem with the audio thru the TV speakers. It appears to me we have a setting that is wrong. We would like to reconnect the sound bar and get the sound and video in sync. Can you help?

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