The format of the debates is ridiculous as it leads to personal attacks. And this should be like the TV show Jeopardy. The time limits are too short, and the questions don't bring out the issues.
A better format would, especially where there are six or more candidates, would be to deal with one issue. That would require a weekly debate to go through the important issues.
Let the candidates get time to propose their solutions to the issue, so the issue should be an important one.
This would give the voters a chance to understand the position of each candidate on that single issue. The rest of the candidates can then try to discredit the worth of each of the candidates position.
Right now the debates are no more than sound bytes, as opposed to real discussions on the issues.
The media should follow that debates with a truth or consequence based on the information brought forward by the candidates. Fact verification of all the points that were brought up in the debate, and let the damage fall where it may.
Unfortunately this can't happen because the media appears to be biased, while the voters still need veracity from the debates.