So, the installer was out here today to convert my MRV from my home network to DECA and to replace my multi-switches with SWiM. When he got out here, he realized that I have 5 DVR's and 1 H21. That's when he figured out that an 8 port SWiM wasn't going to work. So... he went round and round with his supervisor and Direct TV. Finally they came to the conclusion that they would come back next week. The plan is to keep my two daisy-chained Zinwall 6x8 multi-switches in place and add in something he kept calling a SWiM extender. He claims that by doing that, the whole mess will provide DECA connectivity throughout the house. I was under the impression that all switches had to be SWiM for DECA to work. Was I wrong? Does what the installer is telling me make sense to anyone? Assuming it does, does it also mean that I'll have to continue to run two wires to rooms with DVR's? Thanks!