I haven't put a stopwatch on it, but earlier in the season when I was listening to more of the broadcasts opposite the video feed I became pretty well convinced they were cheating time on the radio cast - that is, running the breaks longer and then clipping time during game play to catch up each inning, so they were always coming back late but starting the inning with buffered audio. If that's the case, then if the buffer resets/is lost, coming back in the middle of the 1st AB is exactly what you get.