The restart feature works very well initially. There are warnings for most of the problems it had in Ontario at first (eg. rewinding current show too far and losing fast forward). Only drawback is it's not really implemented by channel. It's different for various shows on the channels. Many shows go back 30 hours while a few are only available for an hour after they run if you watch them while they are on (eg. NCIS on Showcase). And some shows are not available at all.