To me, it's the 20 pages of posts each game bitching about strikes/balls against the TV box which may or may not be accurate, and pitch framing.
So much more enjoyable watching the game without the box like Thursday, or listening to games where they may mention something blatant but otherwise focus on the game and not the umpires, or cheating the umpires (pitch framing). Will be so happy if they automate the zone next season, let the focus be on the game itself.