I have about a week to wait until the store gets this in. i got them to bring it down to 629 for me. my question is does this tv have a qam tuner, so it will be able to pick up some hd off the cable i have, btw i use comcast. i also wanted to know if the SD channels will take up the whole screen or not cause on my 42" samsung they do but thats through cable box so i dont know. lastly, would it be worth it to rent a cable box from comcast?