My parents (89 years old) are likely changing from Comcast to DISH. I currently have DISH and will likely be the long distance troubleshooter. Here is what they have now and what they will likely need. They have one HD-DVR and one HD non-DVR receiver with each controlling one TV. I thought that since I have a 722k and a 211 that it might make sense to get them the same two receivers. However DISH said that they could only get a 722 if it was controlling two TV's. They suggested the 612 instead of the 722. My thought was that the 722 was a better choice because it could record two programs while watching one while the 612 can only do one and one. My other thought was to get two 211's and hook up an external hard drive to one to make it a DVR and avoid the DVR fees. Would this make sense? Any other suggestions?