I have 3 ISP in my home. I would like to have each DVR on it's own ISP (HR20-700) just to give me more down load speed. Do you think DTV will have a problem with this? I do have them all on phone lines and yes they are all in my home. I could have one on DSL one on Cable modem and the other on a EVDO router. I can see if I put all my boxes on one ISP with my kids using it and the adults it my chock it to a crawl. I have several boxes and I plan on making them all HR20-700. To make it a total of 8.