I haven't been able to get NBC on my TV since the changeover to digital. I missed being able to watch Jeopardy, but since I work evenings and wouldn't be able to see it most of the time anyway, I wasn't too distressed by this. But I wanted to see some of the Olympics, so I emailed the Chief Engineer of our NBC affiliate and asked for his advice.
He sent back a lengthy email, of which I understood almost nothing. It was all highly technical, and included a long list of what he called "extra information." He wanted to know precisely where I lived, in case a cable line or radio station might be interfering with my reception.
Before responding, I forwarded the email to my son. Within minutes, I received an email back. Joey said, "They moved their operating frequency from Channel 28 to 11, or down about 350MHz, which tripled the wavelength of the signal being transmitted."
The part I understood was ".....from Channel 28 to 11." I picked up the remote, pressed the number 1 button twice, and was delighted to see NBC come in perfectly clear. As they probably say at the U.N., there's nothing like a good translation.