Would need more info to answer that. Depends on the source recorded. Lip Sync can be a difficult issue to handle, especially if you are like me and can't mentally "process" the delay to tell how far it's off. Fortunately, we have two people who can resolve that by eye and
get it pretty close. But first, I do the math with the gear in the chain to get it in the ballpark.
A lot of stations have lip synce issues, and not all of the networks have a good handle on it either. Especially for live programming.
The views expressed here are my own and do not necessarily represent those of ABC, CBS, CW, FOX, MeTv, or AntennaTv; my employer; or its parent company.
Nor my wife for that matter!