Is there a way to correct the television channel labels on my HDTV?

I have an HDTV, with my cable plugged directly in. No cable box. The TV has a built-in QAM converter. After scanning channels, my channel labels are like 10–1, 13–2, etc. Some have the channel labels (both cable and local). Is there a way to get the TV to display (and allow me to select) channels as 1,2,3, etc. without the dashes. To me it seems there’s no rhyme or reason to the station numbers.