I may be mixing technological metaphors here...
I understand that HTTP Live Streaming (HLS) was created by Apple and supported by QT, Safari, etc.
According to one page on apple.com, the ATV (v2 and later) has an HTTP Live Streaming client.
So... in theory I should be able to receive the Myth HLS stream on the ATV.
But how does one invoke it? I've never seen an interface for it.