Nice project. Take a TV, open it, stick Raspberry Pi running Raspbmc into it with some 3d printed brackets and you have your own DIY smart TV. It's not simple as that, but you get the picture :-)
"Carnivore" tapped the TVs logic board USB ports for power and connected RPi's outputs to TV's input ports which resulted in TV running a Raspberry Pi media center. Superior software on simple cheap LCD TV.
Build log and details: