If I get two HR24 DVRs, can I record 4 shows at once? Can I schedule recordings from either of them and will the system just "figure out" which DVR to use to record the programs? As in, if I am recording a show on a DVR and that specific DVR already has two shows scheduled to record on that day, will the system just record the other show on the other DVR? If the above is possible, will my recorded playlist just hold everything all together from both DVRs, in one nice list, and play them to the current DVR without making me look in two separate places? Thank you.