Only when a win or loss would have a significant effect on a teams standing.

I have no clue as to what code you are speaking, so I cannot possibly answer this Express poll question.

Do it like the NFL where one team has to challenge a call. However, if they challenge the call but the call stands, the team that challenges forfeits the game, and refunds all attendees tickets. Challenges have already brought NFL games to a virtual standstill, with every touchdown, sideline reception, and fumble recovery challenged. MLB games aren't clock-constrained now so doubling the time the average game lasts so every pitch can be scrutinized would be a disaster.

Maybe in post season, where one call can make a difference. Baseball has 162 games, generally a call only makes a difference in one or two games a year.

It's not like football where calls make a difference every game.

No. Whining about missed calls is as American as apple pie.

Do you have any idea how many reviewable calls (or no calls) occur in a game? There's multiple things that could be reviewed on every pitch, even ones where the ball is not put into play (was the pitcher on the rubber, did he make illegal contact between his mouth and hand, was the batter completely within the batter's box, how high was his pine tar). To allow review of "all questionable calls" could double the length of games.

Just to add my two cents:
- Many sports other than NFL now use replay, including NBA, NHL, USTA and Wimbledon, PBR and NASCAR.
- Photo finishes have been used by horse and auto racing for decades.
- The NFL rules for replay and review have changed over the years, to correct inequities, prevent abuse and speed play.

Adding replay to MLB may enhance the game.

Yes, and within a year or two they will.

I can't stay up past the 6th inning anyway. And if we had replay available for every call we'd need more cameras for A-Rod to hit.

Advertisers and money will have their way; review by replay will soon be the norm.

Just what we need--something to make baseball even slower and more boring than it already is.

When did we stop tructing the referees or accepting that bad calls are made at times. I am a recreational league coach and see this issue as harmful. The ref will make good and bad calls. Sportsmanship requires the players to accept it and try harder to overcome bad calls (unless they are all one sided).

Just because someone can do something does not mean they should.

Yes, and they should replace all the umps with robots. Whoohoo, good times at the old ball park! Not.....

Technology already exists to show whether a pitch is in the strike zone or not. But, there are limitations to that tool, and other reasons why the umps haven't been replaced.

Yup. And all stadiums should be identical, to eliminate home-field advantage. And all players should be the same size and age, and should have to wear identical gloves and use identical bats. That way, we'd know the outcome was truly fair.