The documentation on the card...tells you the capabilities. I don't have that card, but I have looked at it as possible purchase...and I have a Hauppauge card...so I can only speak of the differences I have noted. The software accompanying the card determines the specifics of captureing. I use either Pinnacle or Ulead software for editing video I capture via my Hauppauge card.
Your setup is atypical and I really can't imagine it...a system without a video card is pretty incomprehensable in my world
I guess that I don't understand...why you would use two systems, rather than just adding a storage drive to one system. My systems are networked but each has a capture card and the full complement of system hardware that I use, so I don't really understand just what you want to do.
It would seem to me that saving captureed video files on a networked drive...would be immensely inferior to saving such on an attached drive, due to limitations of network speeds.
I can't speak of programming scheduled captures, cince I don't do that...I do all of mine manually, at the system. But...the documentation for the card/software should cover that.