https://www.cnet.com/news/lgs-2019-tvs-revealed-alexa-and-google-assistant-8k-oled-and-more/

LG's 2018 OLEDs: the C8 (left) and B8. The 2019 versions have improved processing.

I asked LG whether any of the new software features would make their way to existing 2018 or earlier TVs, and will update this article when I find out.