This is really an interesting point and maybe the "debate" part needs to be changed.
Almost to the point that when one person is talking the other persons mic is shut off. Or that some plastic bubble comes down from the stage and they are stuck in it while the other person answers.
While it is good entertainment to watch two old dudes shake their fists and yell who has the better lawn...it sort of makes it hard to figure out what the hell they are talking about.
Also...each debate should have its own twitter account, and the moderator(s) should have to ask 5 questions from "the people"