Our Wisconsin state boy's basketball championship is going on this evening, and LOST will not be on during it's normal time slot. Our local ABC affiliate is running it at "approximately" 12:05 am. I need to do a manual recording do make sure I don't miss any of the episode.....enter my problem...When I attempt to do a manual recording on my HR20-100 DVR, I get a message that says, "unable to perform operation(747)" I haven't EVER tried a manual recording on this DVR...It is just not something I use much at all. Any thoughts as to why I get this message??