I have this Sony that does this too. I'm unsure what is going on in OTA HD but it's far from user friendly and issues like this seem all too common.
That is, I'm suspected this is not a flaw in the sets.
On a Samsung 40" TV, I recently moved the rabbit ears slightly. Since then, channels 44.1 - 44.4 now displays on channels 43.6 - 43.3. So all 4 stations on a different channel number and in reverse order. Also, on channels 43, there is now no program information displayed. Just "No title"
About a week later, with no further movement of the rabbit ears, things went back to normal. But that only lasted about 2 days. Now back to the new behavior.
My older TV with a converter box does not exhibit this behavior so I ruled out the broadcasting station.
This a.m., I rescanned all channels. This had no effect.
Any idea what the issue is and how to fix it?