So I am sure I am really late to the party with this one-I don't catch much MLB anymore to have noticed it before last night.
I noticed the catchers don't give traditional signals to the pitcher anymore, looks like a keypad os some sort on their shinguard now? How does the pitcher receive the signal? I am guessing this was done in response to the Astros? I was impressed watching the Cubs catcher, would cover with his glove and key it in, but never looked down to see what he was doing.