As mentioned in this wiki page:http://wiki.linuxmce.org/index.php/MythTV#Setting_up_MythTV_in_LinuxMCE
#2 If you have a PVR capture card, such as the PVR250/350 supported by IVTV, or the newer Blackbird cards (cx88), you will need to install the firmware before proceeding. You can get this from the card manufacturer. Or, you can do an internet search on 'linuxmce.com' 'firmware' to find users that may have posted the firmware for your card. Install the firmware before proceeding with Myth setup.
I'm researching what I need to do in order to get MythTV working on the core. Is that wiki page valid?
I also didn't know this was available to me either:http://192.168.0.2/mythweb/
But I really don't know what I can do there yet.
More reading up on MythTV for me. ;-)