Same issue in New Jersey. Tried restarting, restoring everything. Airport Extreme, Apple TV. Nothing works. Radio is unavailable on Apple TV AND in iTunes. Spoke to an Apple tech support guy who knew exactly nothing.
Baton Rouge, LA. No radio still at 12:41 PM Was working justfine last night when I left the office. I come in this morning at 9am, same error as everyone else. I think we need to get this thread on google news and some reports to investigate and THEN Apple might start taking notice!!!