Time Warner ( TWX) matched fourth-quarter estimates and guided in line for 2007.The New York media giant also said it has bought back $16.4 billion worth of stock under a Carl Icahn-inspired $20 billion buyback plan. Time Warner said it expects to complete that repurchase program in the first half of 2007. For the quarter ended Dec. 31, Time Warner made $1.75 billion, or 44 cents a share, up from the year-ago $1.3 billion, or 28 cents a share. Excluding certain items, earnings were 23 cents a share, down from 24 cents a year ago but in line with the Thomson Financial analyst consensus estimate. Revenue rose to $12.47 billion from $11.52 billion a year earlier, just shy of the $12.48 billion Wall Street estimate. At AOL, revenue dropped 8% from a year ago to $1.9 billion. At year-end, the AOL service had 13.2 million U.S. access subscribers, a decline of 2.0 million from the prior quarter and 6.3 million from the year-ago quarter, reflecting subscriber losses due in part to AOL's strategy to prioritize its advertising business. At Time Warner Cable, revenue surged 58% from a year ago to $3.7 billion, driven by the acquisition of Adelphia assets. Time Warner Cable added 675,000 revenue generating units, or RGUs, in the fourth quarter of 2006. At the end of 2006, 6.2 million customers subscribed to two or more primary products (video, high-speed data and voice), representing 42% of customer relationships. Triple Play subscriptions were 1.5 million, or 10% of customer relationships.