Here's the Sirius site where it's listed. Brian, it looks like it's Channel 18 The Spectrum.
http://www.sirius.com/wo/musicweekly/index.html
Also, if you don't have SIRIUS, you can listen online for free for three days. Click "Listen On Line" and subscribe for the three day listen.
http://www.sirius.com/servlet/Conten...=1018209032790
Probably best to do that next week.
I have someone here at work who uses SIRIUS at work, but she doesn't know how to record anything from it.