My install will be this monday. I have decided to use TV2 out of the 622 since I have an analog tv and I want to use the DVR. My current setup will be a 622 and a 211 with the tv2 out on the 622 going to my analog tv. I will be purchasing another hd dvr within the next 2 years. What switch will the installer need to bring? If the answer is the dpp44, is there any local big chains that carry it? I seem to remember the installer saying they were hard to come by.