Sirius Satellite Radio announced that March 20 it recently surpassed 4 million subscribers nationwide. Sirius delivers more than 125 channels of commercial-free music in satellite radio, with 67 music channels available nationwide. Sirius also delivers 61 channels of sports, news, talk, entertainment, traffic, weather and data. Sirius is the Official Satellite Radio Partner of the NFL, NBA and NHL and broadcasts live play-by-play games of the NFL, NBA and NHL.