If the audio and video on your TV are out of sync — say the lips move first and the sound comes later — you are not alone. It's a common problem, but luckily, it's an easy one to fix. You usually ...

Person holding a remote with a smart TV in the background - Rainer Puster/Getty Images If the audio and video on your TV are out of sync — say the lips move first and the sound comes later — you are ...