I plan on upgrading to the whole home DVR service w/ an HR34. My question is can I keep a box even if they aren't hooked up to an outlet/tv. Reason being I still have a ton of recorded content on them that I want to finish watching before I would send them back to DirecTV. I'd assume they wouldn't care as long as they are active, right? The only potential issue I can see is I get setup for the upgrade and the technician comes over and sees that 2 boxes are active but not hooked up. What kinds of issues will I run into? I don't want to get the install set up and then run into an issue with the installer because they aren't hooked up to TVs.