http://www.newsroom.ucla.edu/page.asp?RelNum=6664Groseclose and Milyo then directed 21 research assistants — to scour U.S. media coverage of the past 10 years.
Of the 20 major media outlets studied, 18 scored left of center, with CBS' "Evening News," The New York Times and the Los Angeles Times ranking second, third and fourth most liberal behind the news pages of The Wall Street Journal.
The fourth most centrist outlet was "Special Report With Brit Hume" on Fox News, which often is cited by liberals as an egregious example of a right-wing outlet. While this news program proved to be right of center, the study found ABC's "World News Tonight" and NBC's "Nightly News" to be left of center. All three outlets were approximately equidistant from the center, the report found.
The most centrist outlet proved to be the "NewsHour With Jim Lehrer." CNN's "NewsNight With Aaron Brown" and ABC's "Good Morning America" were a close second and third
Since Groseclose and Milyo were more concerned with bias in news reporting than opinion pieces, which are designed to stake a political position, they omitted editorials and Op‑Eds from their tallies. This is one reason their study finds The Wall Street Journal more liberal than conventional wisdom asserts.