When instant replay was brought in to the NFL, the hope was that it could be used to eliminate egregious errors. Instead we've got refs scrutinizing every aspect of a catch down to the finest detail, coaches challenging the spot of the football, and still seemingly no end to the bad calls that determine the outcome of games. I'm coming to view it like the idea of measuring for first downs, that is, a fine level of precision based on garbage data (I always laugh when refs eyeball where the ball should be after a play, then trot out the chains, introducing more variables, then measure to the inch).
I wouldn't have said this a few years ago, but maybe it's time to eliminate instant replay. Is it actually adding anything to the game, or just slowing it down?