I know ... yet another thread on CC

I tried to find an existing thread dealing with this but was unsuccessful.  If there is one then point me to it and close this thread.

Some movies show captioning that is almost current with the dialogue you hear, but I've found many that are lagging as much as 5 seconds, which is a long time for some scripts. 

Is this the movie, my stb/gateway, or down the street problem?