Hello, I have tried searching everywhere for a definitive answer but cannot find one. I would like to use my MBP screen as the display for my Xbox and Cable TV. All the adapters I have seen advertise outputting the display to a television, but I would like to do the opposite. I would like to watch my television on my MBP display. Does anybody know of an affordable way of doing so? I have seen the EyeTV, but that is not ideal at all.