FYI: while researching some other LG mysteries, I came across this GREAT site with VERY good visuals explaining the different model numbering schemes for all the older and newer LG models.
This goes from 2011 through to 2020, and is very comprehensive and easy to understand, so hats off to whoever put this all together:
https://en.tab-tv.com/?page_id=7111
Apologies if this has been posted before (and the experts on here may know this stuff already), but even if in the middle of a thread, I think it deserves its own seperate topic. I am sure it will help someone.. 😊