Actually I thought the one on TBS was horribly off the entire series, and not in a biased way, just off as in really bad.
The one on MASN usually seems pretty fair, it's Bob and FP who are often biased.
MASN has a way better camera angle on the pitches for the viewers, so it's a lot easier to judge the strike zone as well.
I wish TBS would actually have a useful camera angle, behind the pitcher rather than to the right of them.