I have switched a smaller tv/vcr combo out for my other work monitor, because I needed it for work. Now the smaller tv will not go up to channel 73, it stops at 69 and I can't get it to view the satellite. I have the dual tuner in the living room. This one is connected via coax in my bedroom. Any suggestions/workarounds for a TV that won't go past channel 69? How do I get it to recognize the coax/satellite? Thank you!