10 bucks this thing gets hacked and leaked on a warez site very soon. Even if it is made for some proprietary hardware. Someone will figure out a way to make it work with off the shelf TV tuner cards with WDM drivers.
I mean..Look at the Xbox.Geez..I just bought a xbox and I was looking solutions at "making it more flexible". and the options are limitless.
Although I recently read of a survey microsoft did and they asked people if they would interested in a application that would allow them to view media files on their Xbox over their home network. Majority replied "Yes". So microsoft might actually release something similar just for that niche group.