I'm leaving on a vacation and with new network shows, sports, and movies coming up, I've set my HD DVR (HR20-700) to record 40 different shows. I've deleted everything currently being stored, but I'm wondering weather I may exceed the capacity of the HD DVR. Is there any way to know ahead of time? Will the system warn me if the scheduled shows will not have enough room to record? If I know that I'll exceed the storage capacity, I can review my "to do" list and delete some of the less important shows. Any advice would be appreciated.