I ordered the MRV service today. I have a SIMS setup and all HD DVRs are compatible. Cost was $99. plus $45. installation. I asked if they could just ship me the DECA part and I could hook it up to the receivers and they say no, it had to be professionally installed. I thought the $45. just to screw the DECA part into the cable/receiver was expensive but I set it up anyway.