I don't know if i'm just retarded, but i got a Motorola HD reciever (no DVR) over the weekend from adelphia, and i can not for the life of me figure out how to get the SD channels to upconvert to 1080i. I had this same exact box with comcast cable a year or so ago, and was able to do it just fine. Dont' tell me that the crap adelphia firmware doesn't allow you to do this.