The radio stations can not be accessed in the manner we did prior to 3/26 on ATV Gen 1 which was directly via ATV under the Internet Radio.
Apple did something (whether intentional or not to stop the stream directly from ATV. Whether the timing Was directly related to the last iTunes update, I can not say.
When I did create the radio stations in a playlist, I did not reboot my ATV nor did
I perform a restore.
On your ATV when you scroll to Internet/ Radio
And choose radio what do you see?
I see Radio/ now playing / categories/ Playlists / Adult Contporary and
A list of radion station genres.
If I choose one of the genres - no internet radio stations will load.
The radio stations that I have added to the new playlist ( in iTunes on Mac)
Will infact begin to play continuously.
I don't know what else to tell you.