I read the readme on sourceforge and the config file has 'audio_follow' where you can set the local broadcast. I have to wait until today's game starts to see if it works.

Also, the link to WGNAMCMP3: Thanks, I'll check it out too. I was under the impression that MLB clamped down on local stations broadcasting the games online. I thought the local stations switched or stopped their online streaming when the games are on.