It's Easy to Learn about Satellite Radio:

There are 2 Brands or companies offering it in the U.S.:

• Sirius Satellite Radio
• Xm Radio

They each offer 65+ music stations and 60 or so other channels.  All the music is commercial free.  Most of the other channels are commercial free too.

Both are $12.95 per month, no contract, no credit check and they offer discounts for signing up for prepaid  service.

Here is a good place to Learn about XM Radio

Here is a good place to Learn about Sirius