HD tv delay/ audio out of synch

I've noticed on certain HD stations the audio is a bit out of sync with the video. And i've noticed with a lot of dvds i play its the same way. Anyone have any idea on what is causing the problem and how to fix it?

Go into the TV's menu and look at the settings under audio. There should be an audio sync option in there.

More than likely, it has accidentally been adjusted from the default, so I'd reset it to default and see what happens.

nice nice, ill try that