At home I really enjoy VDR with Xineliboutput plugin to watch live TV with all my PCs (desktop and laptop).
But VDR (DVB) streams with usual Mpeg2, so this is a no-go for N8x0.

Now I added Streamdev plugin with an external demuxer to transcode it on the (VDR) server side from Mpeg2 to Mpeg4.
For transcoding, your server should have 733+mhz (my server runs at 90% when transcoding...)

And yes, I can stream live TV with N8x0 now, using mplayer for N8x0

Here are some links to VDR and the needed plugins.

VDR:
http://www.cadsoft.de/vdr/

Streamdev plugin:
http://vdr-wiki.de/wiki/index.php/Streamdev-plugin

External remux with Streamdev:
http://vdr-wiki.de/wiki/index.php/Externremux.sh

Sorry, the wiki is in german language...