The more I think about it .. the more I like the idea of a PVR .. (That's Penguin Video Recorder to me)!
The PS3 just seems the ultimate MythTV frontend! .. DVI & HDMI with Digital Audio out (optical even)!!!
Plus Blue-Ray DVD, Bluetooth, Gigabit ethernet, USB 2.0 (great for external hard drives!!)
.. And on the 60GB model, add Wifi multiple memory cards (SD,Compact flash, and Sony stick of course)!
AND ... A reasonably big HD (20GB is plenty of space for a base MythTV install .. with room to cache a movie or two .. obviously you would need a back end server or file server).
Please post comments to any sites doing anything with MythTV on the PS3!