Here is what I have; HR-23 (hooked to HDTV) HR-23 (") D12 (hooked to SDTV) D12 (") Whole home SWM setup I will be replacing one of the HR-23s with a purchased HR-24. What to do with the HR-23? 1. Can the HR-23 replace one of the D12s? I remember when I had the SWM system installed a few cable lines had to be replaced etc. but the line going to the D12 was left alone I believe. 2. Any issue hooking up the HR-23 to a SDTV (it's a spare bedroom so I would rather not replace the TV I would be basically wanting to use the HR-23 as an extra storage space for recordings). 3. Any extra charges from DTV for this? I have the Premier package, I plan to activate the HR-24 and then can I just tell them I switched the HR-23 to replace one of the D12s? Will there be an extra monthly charge for this? Can I do it this way? 4. I think? This would give me 7 tuners so I should be ok if this is possible? Thanks for the help!