im getting DN next week, HD DVR. They told me if i have it connected to a phoneline or internet i save $5. Is there a way i can just bridge it to my laptop to call home now and then or does it call home ever few mins to check. If so when does it call home so i can connect it then. Also, instead of using the DVR for 2 tv's can I just use it for 1 and have 4 tuners one 1 tv?