I know that this has been asked before, I just cannot find it. Sorry for being lazy. I have a digital cable box (Cablevision) and a 24" iMac. I want to watch digital TV in a window on my screen while I work, and then have the option of using the whole 24" screen as a primary TV when I want. The cablebox has the dvr stuff in it so no need to use the mac for that. EyeTV seems to be a coax to usb which as i understand is not an HD signal. Is there an easy way? Thanks in advance.