Wikipedia
XM Satellite Radio
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XM Satellite Radio (XM) is one of two satellite radio (SDARS) services in the United States and Canada, operated by Sirius XM Radio. It provides pay-for-service radio, analogous to cable television. Its service includes 73 different music channels, 39 news, sports, talk and entertainment channels, 21 regional traffic and weather channels and 23 play-by-play sports channels. XM channels are identified by Arbitron with the label "XM" (e.g. "XM32").
The company has its origins in the 1988 formation of the American Mobile Satellite Corporation (AMSC), a consortium of several organizations originally dedicted to satellite broadcasting of telephone, fax, and data signals. In 1992, AMSC established a unit called the American Mobile Radio Corporation dedicated to developing a satellite-based digital radio service; this was spun off as XM Satellite Radio Holdings, Inc. in 1999. The satellite service was officially launched on September 25, 2001. On July 29, 2008, XM and former competitor Sirius Satellite Radio formally completed their merger, following FCC approval, forming Sirius XM Radio, Inc."cnet080729"> On November 12, 2008, Sirius and XM began broadcasting with their new, combined channel lineups. XM was also the largest satellite radio company in the United States before merging with Sirius.
Services
While the satellite receiver radio service is its primary product, XM operates several audio and data services, and advertising.
Satellite radio
XMs primary business is satellite radio entertainment. XM carries music, news (both simulcast and syndicated programming), sports, talk radio, comedy (both stand-up and radio shows), and even radio drama. In addition, XM broadcasts local weather and traffic conditions in its larger markets. The is available on-line.
To receive satellite radio programming, a customer is required to purchase a receiver. Prices range from less than read more at » http://en.wikipedia.org/wiki/XM+Satellite+Radio