HD Broadcast LOST????

[thizzle42]

I recently bought a new TV and moved my 46" Samsung DLP downstairs to another room. I do not have it hooked up to a Digital HD Cable box, just straight into the cable outlet. When I first hooked it up, it scanned for channels and located hundreds. Most importantly, I had ABC, NBC, CBS, and Fox in HD. I was assuming this was coming from the built in HD tuner getting the signals from local stations. However, about a day later, all of these HD channels dissapeared. They no longer come in.

What happened to make me lose these? I have tried rescanning and that does not work.

Thanks.