I just got off the phone with Directv CSR and inquiring on the whole home dvr. I have 1 HR 20-700, 1 HR 21-700, 1 HR 23-700. The HR 21 I just received at the beginning of March. She told me I needed to swap all my equipment and pay $99 for equipment and $49 for install. Then she said that she needed to cancel my order and redo order. (Only order was HR 21 on March 1) Well, I know, through this web site that my receiver equipment can be used for MRV but I need Swm (I still have 2 wires to each unit.) So, I know she doesn't know what she is talking about, and frankly, I didn't understand about canceling some order and redoing it. I am interested in MRV and just want to know what is involved in getting equipped to handle it. Cost of Equip. and install? I understand that it is 3 dollars a month for the service. Can someone help me?