Recently our local channels that we receive over HD have been 'scrambling', it happens after watching them for just a minute or two, it is only the local ones, the expanded hd channels are fine. I've called numerous times to the cable company and I get a run around about how it's b/c of with the digital switch they're now coming over the airwaves or something and there's not much they can do about it, are they serious?? We haven't seen a show on a local channel, much less be able to watch the news in about a month and I'm beyond aggravated. Is there something on my end that can be done? New box? Last year we had to replace our tv and so we got a nice plasma set and went ahead with the hd channels to make it better, now it just all seems like a big $$ waste. I'd appreciate any help or tips you can give! Thank you!