I have a 6000 receiver and use an antenna to get my local channels. About a week or two ago the signal strength on the local digital channels when to 0 and the analog channels are nothing but snow. I tried disconnecting, deleting the digital channels from the menu, rebooting.. nothing worked. I don't think the antenna is the problem because I get analog channels fine when it is connected directly to my TV, VCR, or Tivo. All the other satellite channels are fine. Any suggestions on what the problem could be? Thanks.