You can just try it to see if it works.
For example, if your channel scan missed WTEN-DT 26 (10.1) ABC, you can try using your remote to tune to Channel 26. If your television finds a channel there it may automatically save it as channel 10.1 (and automatically add the sub-channels, if there are any).
You can also do a "Partial Channel Search" on your model (page 41 of the manual you posted) using the real channel number. Though if your television auto-search didn't find it the first time it may not find it with a partial search.
I browsed your older posts and did not find a discussion of your basic antenna information. If you'd like some additional information that may help can you you please post the following:
1. Your TV Fool Report (made using the direction at this link: http://forum.tvfool.com/showthread.php?t=14508
2. Your antenna make and model (or post a picture), where it located (in the same room as the television, in the attic, on the balcony or roof).
3. The direction it is pointed in, what it sees as it is aimed in the direction of the towers (walls,trees, buildings, mountains, etc.).
4. A list of what channels you actually get and those that you don't get but want.
Here's a generic plot for Albany: http://www.tvfool.com/?option=com_wr...e6a41645cdba5c
Your plot may be very different. But this plot shows that someone in downtown Albany has signals coming from two directions, northeast and west. That is a big factor in antenna pointing.