There's a torture scene from "La La Land" that Samsung was using as a demo for the blacks. It this demo ends up being true for the retail units then gotta give Sammy some props.
Curious if any of the owners have LA LA Land? (BTW, there's a different article I need to find that goes into more detail about which exact scene in LLL that was used and how it handled the scene)
"Finally, for the last demo, Samsung showed off the Q9F's movie performance in a completely dark room, highlighting the set's impressive Full Array Local Dimming -- a very welcomed addition to this year's model that was sorely missing from Samsung's 2017 display lineup. This feature uses a panel of controllable backlight zones to offer superior black levels and contrast.
For comparisons sake, the 2018 Q9F was placed alongside an OLED, a 2017 edge-lit Q9F, and a 2017 Full Array set from a competitor(Z9D) . All of the displays ran through a series of HDR clips from La La Land, Guardians of the Galaxy Vol. 2, and Planet Earth II.
In general, the 2018 Q9F looked simply amazing, offering deep, inky contrast while also managing to have the brightest HDR highlights in the group. At the same time, the Q9F's implementation of local dimming seemed to actually rival the OLED's perfect black levels. Likewise, color reproduction often looked a little more vibrant and natural thanks to the superior quantum dot color volume.
The pitch black background in the La La Landscene disappeared into the room, while the spotlight on the characters lit the shot with precision and no noticeable blooming. Guardians of the Galaxy popped nicely thanks to its colorful palette, and Planet Earth II was oozing with detail, even in dark shadows.
Don't get me wrong, the OLED often looked stunning as well, but the equal black levels and extra brightness of the QLED set really did give a bit more oomph to the picture. Meanwhile, the previous generation 2017 Q9F suffered from typical uniformity problems associated with edge-lit panels, and the competing Full Array set looked nice as well but not quite as deep as the Samsung or OLED."