CNN loves to have these focus group, live dial things going showing reactions of people watching at the time.
How about they also run a bar chart at the bottom as to how many minutes each candidate has had to make a statement or answer a question? We could see if one particular candidate or two particular candidates are droning on and dominating the time, or, more importantly, if CNN is picking one or several and ignoring others.
The obvious truth is that we know that CNN is picking a candidate more than any other. And we all know who that candidate is.