My trusty old HR20-700's hard drive finally bit the dust. Was replaced under the protection plan, and as long as I was at it, I had them roll a truck and upgrade me to SWM, Whole Home, and Cinema Connection Kit. Best deal I could talk them into was no equipment charge for the upgrade, and paid only installation ($50-something). To get this deal I had to order the whole home upgrade including two HD receivers I didn't want, then just have the installers put the two receivers back in the truck. Strange way to do it, but what the heck.
As the replacement receiver I received a new HR24-500 (much better looking on the equipment shelves). Anyway, the reason for the post: The installers did take the old HR20-700 away with them.
If the 20-700 was leased, it probably doesn't matter, but they should have left it with you. If it was owned, you should have kept it, that does matter as they are still easy to sell on eBay and CL.