might be a chance to swap out the harddrive, but i'm not sure.
otherwise you could use some sort of capture device to save them onto a computer for later viewing. options would be a tuner card that could capture in sd quality or something like the hauppauge hdpvr could capture in hd quality.
hope that helps
any further questions on the devices could probably be answered in the htpc forum
A forum community dedicated to Canadian TV, computing and home theatre owners and enthusiasts. Come join the discussion about home audio/video, displays, troubleshooting, styles, projects, DIY’s, product reviews, accessories, classifieds, and more!