I've been playing some more with my carputer - I've installed a PCI TV Tuner. I used a Leadtek Winfast TV 2000 from
here. It is a Digital TV tuner with PVR (Personal Video Recorder) so I can record anything that is on TV or whatever input device I have hooked up to it (reverse camera, security camera etc). It has all of the cool features like Picture In Picture and Time Shift as well. Now I can watch digital TV on the factory ICC (not when I am driving of course)
I have installed the TV Tuner and it is working, but I am only using a 'rabbit ear' antenna at the moment. The picture will improve greatly when I get the correct 'Diversity Antenna'. Much Googling to go!!
Panda