'How to Rock' breaks Nick's bad spell Debut scores solid ratings among 2-11s and 6-11s, lifting network after a ratings slump and increased heat from Disney (charts)   For HBO's 'Luck,' a jump start of sorts Network renews the racehorse drama after just one airing and poor ratings, largely based on positive reviews by critics (charts)   OWN's real problem: Lack of Oprahness Network carrying Winfrey's name has failed to build an identity tied to its founder, and that explains its low ratings and turnover   NBA lockout? What NBA lockout? Ratings are way up, never mind the missed games, with games on TNT averaging 3.1 total million viewers, up 67 percent (charts)   On cable, thirst for junk is still growing Spinoffs of top auction shows debut to big audiences, History's 'Cajun Pawn Stars' and A&E's 'Storage Wars Texas' (charts)   BCS fumble: Ratings dip in 'Bama sweep ESPN game averages 24.2 million total viewers, a huge tune-in but off 11 percent from last year as LSU fades early (charts)   Iowa's big winner with viewers: Fox News Averages 2.63 million primetime viewers on Tuesday, more than CNN and MSNBC combined, with 1.31 million and 1.2 million   The top cable network of 2011: USA Finishes the year tops in 18-49s, 25-54s and total viewers, averaging 3.3 million in primetime, up 1 percent over 2010 (charts)   For Oprah and OWN, a likely winner at last First original Winfrey show, 'Oprah's Next Chapter,' averages 1.1 million viewers in its debut, best rating since network's launch   Cable's 2012 prospects: So very rosy Ad spending is expected to top $22 billion, at a time when other media suffer, thanks to low prices and continued ratings growth next >>