I currently have the 5LNB dish, one HD Mpeg2 box upstairs and one HD H20 box downstairs. I am trying to add a third standard definition box but they did not install a multi switch when they put in the new dish for the h20. Is there anyway to add the multi switch to the correct lines so I can add a third cable run ? I talked with Directv support and after haggling with them for a while they started explaining how I can hook up another reciever directly to the 5LNB dish. It only took a couple of minutes to realize this was not a do it yourself job. They said no go to a splitter (Missing channels? ) . What are my options ? Any help is greatly appreciated.