So if MLB decides to expand the instant replay review, what should be added...

[madinmaryland]

Obviously there are the calls on the bases. (safe or out only).

Balls and strikes - absolutely not.
balks - no.

Discuss.

[Auggie]

1. You read my mind

Agree with yours. How about...

• Interference by fans and players

• Fair and foul balls

I suggest leaving it to the discretion of the crew chief for that particular game too. Players and coaches could not lobby for a review.

[madinmaryland]

2. Those are two additional good ones, Auggie.

Definitely fair/foul balls.

Interference might be a little more harder to define.

What about hit batsman?

[Auggie]

3. I like keeping hit batsmen in the arena of balls and strikes

Same with foul tips. The home plate umpire is right there -- standing static -- he would be in the best position to make that call, don't ya think?

[Iggo]

4. These:

safe/out (at the bases)
fair/foul (lines)
homerun/no-homerun (lines)
catch/trap (in the outfield)

[ProfessorGAC]

6. Works For Me

I'm almost leaning toward having Safe/Out at the bases be force out plays only. I think sometimes it would be hard to tell on tag calls. Maybe not. But, force out plays would be obvious on video.
GAC

[hughee99]

5. Catch or trap.

Another fairly common missed call, especially in the outfield so the umps aren't always in a good position to make the call.