It won't help. Griffin was the most credible newscaster on CNN. Her departure can't help their ratings. Rumor is she will join either MSNBC or CBS. Watch the ratings of which ever network she joins rise.
More people watch CNN or the Cable News Network than HLN or the Headline News. This is because HLN is a part of the Cable News Network so any person that is watching HLN is watching CNN.
The New York Times's core purpose is to enhance society by creating, collecting and distributing high-quality news, information and entertainment.
Cable News Network (CNN), Headline News (HLN, a spin off channel of CNN), Microsoft National Broadcasting Company (MSNBC), and sometimes Fox News. The Fox News channel is often focus of the conservative community, so their ratings are from people who have conservative views.
CNN
CNN on comcast is on channel 25
cnn
Fox News Channel is the highest rated Cable News Channel with CNN in 2nd place
CNN Newsroom - 1989 CNN Newsroom was released on: USA: 28 January 2012
CNN was started in 1980 by Ted Turner.
CNN Network
CNN is more neutral and ndependent