DirecTV-15, a broadcast satellite now owned by AT&T, shown prior to its May 27, 2015 launch on an Ariane 5 rocket. Credit: Airbus Defence and Space WASHINGTON — AT&T, owner of U.S. satellite television giant DirecTV, is finished buying satellites, executives said Nov. 29. “We’ve launched our last satellite,” John Donovan, CEO of AT&T Communications, said during a presentation to analysts. AT&T Com