EL SEGUNDO, Calif.--(BUSINESS WIRE)--Today DIRECTV (NASDAQ:DTV) reported first quarter 2015 results highlighted by solid subscriber growth across the Americas and strong revenue growth at DIRECTV U.S. resulting from improved ARPU and churn performance. “Our U.S. business generated another strong quarter of results, further demonstrating our company's strong execution, as well as product and brand leadership,” said Mike White, president and CEO of DIRECTV. “In the quarter, our focus on high-qual