You didn't look very carefully.

This is Sirius channel 115:

On the contrary, I looked very closely. The vast majority of the
programs listed there are programs that you can receive on smallest,
cheapest shortwave receiver out there, using only the whip.

Is this what's supposed to get me excited about Sirius? You must be
kidding.

And I can already hear BBC World Service News 24 hours a day, with my
choice of multiple frequencies at any given time.

One thing I haven't looked at yet is the Sirius channel that features
military comms, amateur radio operators and so on. Can you provide a
link to that channel's schedule, please?

Steve