I searched the threads and couldn't easily find my question answered so here they go: I am switching from Comcast to Directv on Wednesday and ordered the Whole Home DVR package (1 HD DVR + 1 HD Receiver). The rep said that I do not need anything else to make this work including ordering on-demand. My questions are: 1) Can the DVR & HD receivers communicate over the coax or do they need to be hooked into my home network via Cat 5? 2) Should I be requesting a certain DVR model (HR 24)? 3) Does anyone know if they will install the satellite dish on the fascia or eaves (vs. on the roof)? I am really worried about roof leaking which happened in a previous house. Thanks in advance for the help!