View Post Ratings Cable Network Ranker: Fox News is Most-Watched Cable Net; MSNBC Moves to No. 7 in Prime By A.J. Katz on Aug. 30, 2016 - 6:25 PMComment Fox News, CNN and MSNBC were all top 10 basic cable networks in total day. Fox Business improved from August 2015 in prime time and total day. CNBC improved from August 2015 in total day.