Well, now we have the stream-in-a-roamio and still, it doesn't seem anyone has made any progress on some 'creative' alternate stream receivers.
There had been options for Mplayer and VLC to play streams from the TiVo, but that required vserver. Those hacks don't work with the official 'streams' and I doubt server will even run on newer TiVos. Besides, what's the point of adding a stream server to a product that already contains one.
Or... have my countless searches simply been poorly constructed and there is really something out there that will let me receive a stream on a desktop platform.