Apparently they do. But those elves need more training. That is going to take a long time. See Incorrect Channel Lineup and Guide for NJ - #15 by Russell_Rogers
My guess is the guide provider gives Scripps/Nuvyyo all the programming data for the many subchannels of the 1700+ U.S. TV stations. It’s up to Scripps/Nuvyyo to get the right data to each Tablo.