I currently have Adelphia Digital Cable and I am not happy with the picture quality at all especially on my big screen HDTV. If I switch to a dish how much better will the picture quality be? Secondly, I live in a townhouse with tv's on all 3 levels, how do they run wiring from the dish to all these levels? Are they drilling holes all over my house with wiring running all over the place? Thanks in advance.