Afternoon Debate?

(AP)
Why are more and more presidential debates taking place in the afternoon? When the audience is a fraction of their prime-time lineups?
To refresh your memory ...
There was a CNBC debate back in October at 4pm.
There was that NPR debate last week at 2 in the afternoon.
And now, the next two days, we’re going to have two debates broadcast on CNN, MSNBC and Fox News Channel -- at 2pm.
What’s up with that?
Mike Huckabee on GOP "rock stars," 2012, health care reform and more.