Any advice on something I may be doing wrong. Running the Zenith HD DTV1080 Sat Receiver thru my system. I get everything I'm subscribed for including the HD channels but no locals. Locals are available in my area and i actually get the banner of the local station when i attempt tuning into it but no pic. Tried unplugging and resetting receiver, but did not work. Received a new card from DTV and did not work. Tried scanning new channel list and that didn't work. Message received at bottom of screen is "Channel Is Not Available". Signal strength is strong on all 3 SAT's. SAT A is 95-98 on all transponders, SAT B89-98 and SATC is 95-99. Do I have a bad receiver? Thanks in advance for any help.