I have read that you can have a X1 DVR and a Legacy on the same home network even though Comcast will tell you it can't be done. Has anyone done this sucessfully? My split household does not want to share recordings. A tech came out and installed a filter that did nothing. We can still see each other's recordings even though we have two X1 DVR's. Has anyone actually tried mixing a X1 and a Legacy DVR on the same network?