A couple of my channels do, but the only one with real utility is the SHOUTcast channel, which allows you to launch the channel directly into a custom SHOUTcast station. The URL query parameters, if you're interested, are:
- url - The URL to the SHOUTcast stream
- name - The display name of the station
I may add to this in the future, depending on demand, but those get the job done.
My Channels: http://roku.permanence.com - Twitter: @TheEndlessDev
Instant Watch Browser (NetflixIWB), Aquarium Screensaver (AQUARIUM), Clever Clocks Screensaver (CLEVERCLOCKS), iTunes Podcasts (ITPC), My Channels (MYCHANNELS)