Installed MythDora on a box cobbled together from parts and plugged it into the new TV. Bought a cheap cable card off ebay and plugged it in. Apparently, that was pointless, since the signal coming from the cable company is encrypted. MythTV doesn’t seem to see anything. The menu is far nicer to look at and navigate than the simply awful DVR interface offered by the cable company. Now if I can just get some content onto it.