Hi, We're about to discontinue our Directv service in favor of cable (the bundle with internet is too good). I know that shortly after we deactivate our service our DVRs will stop functioning, so we plan to overlap a short while until we clear out the backlog of recorded programs. My question is, will the unit be happy with just one connected co-ax? I would rather repurpose one of them to connect to the new cable box, rather than run an additional one through the house. Thanks!