Dish came out today to install my 2nd dish to get extra locals now available in Dallas. He said could not because no line of sight to 148. Said big tree in neighbor's yard two doors down blocked line of sight to 148. He offered to install but said it had to look right though the middle of big tree and would not work. He said this was the third one today that he could not install. He said I could get 61.5 but the extra locals are not on it. He said 148 was West coast and require a real low look form Dallas to get it. He got Dish on the phone to advise them. They offered me a second opinion, but I did not ask for it. Does this seem normal?