As other posters have said, I'm not for machines, but for umpires being held accountable for poor performance. This should happen monthly, weekly or daily if called for.
I listen to a lot of day games on MLB radio. Love Cleveland, Denver and NYY. They describe the game and root for the home team. Never get confused about what's going on, the score, or what inning. Not so much with Milwaukee.
I want radio announcers to tell me wants happening on field, the score, the count, and the general game situation. Uecker hasn't done this for 4 years. Time to go.