Dear capecodmama,
I'm delighted you found your "work-around," but using iTunes 11.1.5, on ML 10.8.5 will NOT perform at all.
Your second post really threw me, as it contradicts what you said you did in the 1st post. Maybe I have misunderstood.
I created a new internet radio playlist in iTunes, and then went first to the "Music" in my iTunes Lib, tried "Radio" first, and couldn’t make that work. Then I discovered that there was also an "Internet" button too.
I was successful in adding a few internet radio stations to my new "Internet Radio" playlist, and thought I was really on to your work around, but then going to AppleTV, and selecting "Shared Library"/Playlists, the new playlist was NOT there.
Your 2nd post implies that you did this in AppleTV through the "Internet/Radio" tab on the home page, but for me this still has no listings whatsoever in it besides "Radio."
Have I not followed your instructions properly, or is it the fact that I'm running your most current ML OS?
Thanks,
George