ok so basically i have windows 7 64bit ultimate running on a emachine. the desktop has a open pci slot. i already have my home network all set. so i am able to stream movies to either one of 2 xbox 360's i have setup in my home. I have cable internet. my though here is. 1. is it possible if say i canceled my cable gave the box back. but kept the internet. (which is cable) to unscramble the signal with a tv tuner? all i care about is hd aspect. from what i read i would need a qam tuner? would i be able to unscramble payper view items like hbo?if not thats ok i can find my shows. 2. is it even possible with cable canceled to do so? what card would i need? i see some for cheap like 60 bucks. also see then for hundreds of dollars. i wanna do this with media center. so having a remote wouldn't matter for some i see with ir ports. can anyone shed light on this? i mean like i said as long as i get all the channels. except hbo max stuff like that it would be fine. is it possible?