AT&T Inc (T.N) is close to wrapping up its deal to buy DirecTV (DTV.O) as U.S. telecom and antitrust regulators signaled a green light for the $48.5 billion merger that would create the country’s largest pay-TV company. The Federal Communications Commission Chairman Tom Wheeler on Tuesday recommended that the five-member commission vote to approve the merger, and the Justice Department said the deal did not pose a significant risk to competition. AT&T and the FCC have spent recent weeks negotiating the conditions of the deal that combines the No.