I'm getting the 622 but I currently own my 942. I think getting $10 for it from Dish is kind of lame and the CSR told me I'm not required to send it in. The other receiver in my house is a 322 so I'd like to put my 942 in its place thus giving me a second DVR when the 622 comes in on Saturday. As I understand it, I will have to deactivate the 942 and then reactivate it. Will any of this erase the content already saved on the 942? My wife will kill me if I lose all her shows