Yesterday when I was playing back an HD show on the EyeTV, I heard the fan running like mad. The Mac Mini is a 1.66 GHz Core Duo Mac Mini. I thought that the problem was the processor being a Core Duo and not a Core 2 Duo machine, but then realized that the machine has integrated Intel graphics while the latest Mac Minis have separate NVIDIA graphics. My suspicion is that the new machines won’t have to work so hard to play HD video full screen.