Ok, I guess I did not word/provide enough info. Yes I have an antenna in my attic & get the local HD broadcasts; 2-1, 5-1, 11-1, etc.
The channels that I list in the OP appear, to me at least, to be replicas of my local FOX affiliate, channel 5. 5-1 & 5-2 come from OTA, but as far as I can tell the other two channels are coming from D*. There is a slight but noticable quality difference.
I have not done a channel search (OTA) for many months, & as I understand it, new OTA will
not be added automatically.
Once again I apologize for any misunderstanding this may have caused.
p.s. I have my H10 set to display 1080i only. I will go downstairs & set it to native & see what I get. Be right back