The 508 should make a good offliner as noted above by Charise. Mine is active, but I've taken it for extended travel to watch pre-recorded DVR events and had the same experience - it works great after a minute or so of "aquiring signal", just press the DVR/PVR button. In the rumor mill, I've heard the 501,508,510 series may get name search features in some future upgrade. With no DVR fee on the 501 and 508, they are real keepers should this ever occur.