I just signed up for dish network and they are scheduled to install my dvr in 2 rooms next tue am. I have never had dish before, but i do have experience with Directv with tivo. Are you able to tell me the differences? Also I am afraid of the installer putting yet another dish on my roof, also the roof is not in the best shape either and i cant afford any more holes in my roof. I already have 2 up there, one from direct tv(me) and one from previous owner of dish. What are my options? Can anyone give me any advise on specific things to ask or things to do when the installer comes? If anyone has any suggestions please respond asap. Also was wondering if anyone knew if I decide to cancel the service will i have to return the dish also? or just the receiver and remotes? Also I will be moving soon so thats why I have alot of questions.