Ready to switch from E* (two 622’s) to D* (two HR20’s, a 3rd later) and take the advantage of the $20/mo. programming off for 12 moths deal. I have a few questions remain if I can get some quick answers or a link to the Q&A. 1) How to ensure I get the HR20’s not the HR21’s since I need OTA? Will I be in trouble if I buy one from Costco and ask the installer to add it during installation, even though I will place the initial order through D* directly? 2) Do the HR2x boxes have a simulcast of the main A/V output modulated on ch3 or ch4 so I can run a coax to support a second TV? If so will the HD channels be available too on that 2nd TV in 480i of course? Can I get a second remote that can be used through the walls? And if so can the remote change address so two of them do not interfere with each other? Thanks in advance.