I currently have DirecTV digital service and have been trying to upgrade for 3 weeks to HD. I had one installer come out and tell me I had to remove two branches at the top of a tree to get a signal. I have practically removed the entire tree, all the branches are gone. I had a second installer come out and tell me that the tree I worked on is fine but two others are in the way. These two trees were not a problem for the first installer who came out. I have seen HD dishes in my town on roofs that have signifigantly worse lines of sight than mine. What should I do? I have the supervisor coming out today at 3pm to talk about it. I have heard they can extend the support arm a few feet or just angle the dish. I appreciate any suggestions, I really don't want to have to go to Comcast.