The LG OLED42C24LA is the first OLED TV to feature a 42-inch display; previously, OLED TVs only went as small as 48-inches. Still, a 6-inches smaller panel does not shave anything off the OLED42C24LA's price tag compared to its 48-inch sibling, the OLED48C24LA.
https://www.notebookcheck.net/LG-OLED42C24LA-World-s-first-42-inch-OLED-TV-launches-for-pound1-399.600251.0.html