Watching my satfinder as it is searching, some of the loaded transponders are H, some V, and the Freesat 13/18v led changes green or red. The base frequency seems similar example 11836 H 20765, then 11836 V 20768. It appears this means I am getting “valid” - but different channels just by changing polariztion. From my qth the skew is negligible. Hence the near vertical orientation of the lnb. By the way, I don’t know what the second number for each transponder is … some articles say “SR” or lines/sec. some bandwidth.
I manually typed in the TP’s since I couldn’t find the downloadable table, so I expect some errors. - used https://www.satbeams.com/channels - charts tab
I guess the lesson is: search twice - with the different orientations/polarization’s.