Rabble TV is a new site where fans can sign up and broadcast the games themselves. According to the Help page, these are the very simple instructions:
1. Pick up the remote control to your TV.You can also see if the game/event you want to watch is being broadcasting by anyone. It looks like there are at least two broadcast alternatives for Red Sox games.
2. Press the MUTE button.
3. Grab a mic.
4. Create a broadcast on Rabble.TV.