Channel for Radio FAQs

The indefatigable dws has launched a dynamic Radio FAQ channel. To participate, he says, start a RadioQuestions channel on your blog and tell him about it. He’s aggregating the questions, answering them when he can, and other wise putting out word so that others can answer what’s left.
My first question would be, how do you subscribe to the RSS feed for a single channel? For that matter, is it possible to beam different channels to different hosts (it seems to be but I don’t see anything like that in the Radio interface). Also, is it possible to use the Manila-Blogger bridge to send just one channel to Blogger API site. Lastly, why aren’t headings showing up in my relay site?