It seems there are two (compressed) streams available: some kind of a windows media file playlist (.wmv) and a real audio file (.ra). No hints regarding the bitrate, though.
Unfortunately I can't further investigate due the use of a current computer setup without the deployment of proper speakers and software.
But as long as the broadcast quality is comparable to 128kbps+ mp3 compression, the recording will be ok. Surely it won't be a lossless high-end-recording. On the other hand the broadcaster may compress and modify ("enhance"....) the signal nonetheless on the way from the arena to the studio.
All that tech-talk aside, I'm really looking forward to this broadcast!