I'm trying to get an old model 625 receiver to work as a standalone DVR (replace my aging vcr with DTV TV input).Is there any way to configure the 625 to stop complaining about "Attention: Acquiring Satellite signal" and function as just a dvr to record OTA DTA signal?There are a couple of old recordings on the drive that play fine through the rca video outs, and DTV signal passes through fine on the coax connectors, but I can't figure out how to:1. Wire it in. Are the coax connectors (TV in and out) only passthrough, or can the unit record off that path?2. What configuration settings are required to get the unit to stop looking for a sat signal?Thanks.