Fox & MSNBC Became More Extreme As Election Day Neared, Reports Pew

Here is an article from Mediate discussing a study done by Pew Research Center's Project for Excellence in Journalism that showed became more "extreme" in their bias as the U.S. presidential election neared:

http://www.mediaite.com/tv/fox-msnbc-became-more-extreme-as-election-day-neared-reports-pew/

Rival cable news channels Fox News and MSNBC became even more “extreme” in their coverage of President Barack Obama and Republican challenger Mitt Romney during the the last week of the 2012 presidential campaign, says a new Pew study.
The study, released today by Pew Research Center’s Project for Excellence in Journalism, found that in the final week before election day, MSNBC’s negative coverage of Romney jumped to 68 percent, compared to the 57 percent negative coverage they gave him for most of October.
Fox News’ negative coverage of Obama increased to 56 percent in that final week from the 47 percent negative Obama coverage during October.
On the other hand, during the final pre-election week, MSNBC’s positive coverage of Obama shot up to 51 percent from 33 percent; and Fox News’ favorable Romney coverage went from 34 percent to 42 percent.
Full survey results here.