Editing Radio broadcasting (section)

===Satellite===
{{main|Satellite radio}}

The enormous entry costs of space-based satellite transmitters and restrictions on available [[radio spectrum]] licenses has restricted growth of [[Satellite radio]] broadcasts. In the US and [[Canada]], just two services, [[XM Satellite Radio]] and [[Sirius Satellite Radio]] exist. Both XM and Sirius are owned by [[Sirius XM Satellite Radio]], which was formed by the merger of XM and Sirius on July 29, 2008, whereas in [[Canada]], [[XM Radio Canada]] and [[Sirius Canada]] remained separate companies until 2010. [[1worldspace|Worldspace]] in Africa and Asia, and [[MobaHo!|MobaHO!]] in Japan and the ROK were two unsuccessful satellite radio operators which have gone out of business.