See the blog which accompanies this video at http://t.co/kxc88eZ5
Having set a static IP address of 192.168.1.104, we are now going to set MythTV up so that it can act as a media server. This is very simple to do.
Once done, you will be able to watch your TV recordings on any UPnP device or compatable software, for example XMBC or on you network attached LCD TV, as your MythTV PC will appear as a media server.