DIRECTV reported U.S. gross subscriber additions of 863,000 for Q2, a decline of 10% compared to the second quarter of 2005 primarily due to the implementation of revised credit policies and dealer incentives aimed at improving the quality of new subscriber additions. DIRECTV now has 15,513,000, up from 14,670,000 a year earlier.Q2 revenues increased 10% to $3.52 billion and operating profit before depreciation and amortization(1) nearly doubled to $977 million compared to last year's second quarter. The DIRECTV Group reported second quarter 2006...