Well, the difference as I see it is, people from NPR are talking about it with the hopes of fixing it. There have been stories come out the last year or so talking about how CNN is trying to make a bigger effort in not be biased. Getting rid of Lemon was a step in that direction.
Fox??? Naaa....they just like reporting how horrible everyone else is without looking at themselves.
And....just because CNN's stories are not favorable to Trump, doesn't mean they are biased. He is, afterall, on trial.