Sorry if this has been answered before. I am thinking of giving a Tivo Series 3 OLED to my uncle. He will have only a cell phone and no internet service. He will have Charter cable service in SoCal and I would set it up w/ 2 Cable Cards. Will he need a landline for guide updates or any other reason? I don't imagine that there will be any firmware updates any time soon? I can do a clear and delete before I give it to him. Will I be able to do guided setup w/o a landline?