I just tuned in to xm's 113 after six months camped out on another channel for political purposes. Classical Pops never sounded this good before, so the first question is have they changed something like increased the bandwidth for more dynamic range? Of course my current XM receiver is gettin mono only.

As an early adopter of xm, and in my second generation of receiving equipment, I have some questions about this new HD broadcasting.

I see it is listed as true stereo as well as 5.1 Surround. That's good news,amd I presume it will return broadcast stereo music to my ears, now that the FM NPR stations have gone talk talk talk talk.

Is it expected that other channels, or even all channels will be eventually in the HD format? Will there ever be degradation of the experience, such as adding commercialy after we have invested in new equipment?

So, we're interested. It will depend on how it sounds when we get a chance to hear it, and how much new equipment, again, we have to buy to make it work..how much money, along with the other questions we're asking above. Waiting to find out!