Hey Ben,
I have a show idea that I think would be interesting.
I know you did an episode with a Raspberry Pi but I think it needs more attention (the thing is marvelous). I was actually thinking of getting one and maybe using it as some sort of DVR possibly?
I am sure you could figure out how to do something like that possibly using a TV tuner connected to the Pi. And this could be used to connect to a computer monitor (which is how I would use it) and possibly have a way to connect a PS3 or console through it. Just some food for thought!
-Erik