I have a DTV-Hughes Tivo model GXCEBOT that started losing some, but not all, local channels. Over a week or so more local channels were lost. Higher channels seemed fine. I called DTV tech support. They told me to reset the box, which I had done before calling, and which took a very long time, hanging up for perhaps 15 min at 37%. Resets were ineffective. They sent a local tech. The other TV connected to the dish has no problems. The tech fiddled with the dish and tried to reset, lost patience at 37% and replaced the Tivo with a non Tivo DVR which I hate. I own the Hughes Tivo, so I've still got it. Can I fix it? Can Weaknees fix it?

Thanks in advance for your help