OK, I know there are existing threads on all of this stuff, but I am clearly "search-challenged" today and can't really find what I'm looking for. I just had DirecTV out yesterday and they installed a new HR24 and a Slimline 3 dish (with SWiM). I also have 2 H23 receivers. My entire house is wired for ethernet, so I have wired network access at every receiver. When the installer was at my house yesterday, he said I had to have DECA and installed a unit which I believe was a broadband DECA (small black box, short ethernet cable to my switch and a coax to the splitter). So, in short, my questions are: 1. Do I really need the DECA unit? I thought I could run everything on ethernet. 2. What is the difference between MRV and Whole-Home? 3. Do the receivers I have allow for either MRV or Whole-Home? Please don't flame me, I know I have seen threads about this, but just can't find what I'm looking for today. If someone could point me to the links or let me know on the above questions, I would appreciate it. Thank you!