WASHINGTON - XM Satellite Radio announced today it is now available on DirecTV, the largest satellite TV provider in the U.S. Seventy-two channels of XM's music, children's programming and talk radio content are available via DirecTV, nearly doubling the DBS company’s current audio programming lineup at no additional cost. In addition to XM music channels and children's programming, DirecTV is offering XM's Major League Baseball "Home Plate" talk radio channel and XM's High Voltage channel, featuring talk radio stars Opie and Anthony. Customers subscribing to the DirecTV Total Choice programming package will have access to 50 XM Satellite Radio music...