Update 10/28/2021: We retested the local dimming feature in 'Game' mode with firmware 2016.1. Local dimming is a bit better than before, as the TV appears to be doing a better job at averaging out bright areas across multiple zones. There's actually a bit more blooming than before, and bright objects don't stand out as much, but overall it's a bit better.

Update 06/23/2021: We've added two new videos demonstrating the local dimming feature with real content.

In 'Game' mode, the local dimming doesn't do much, especially with real content. There's very little black crush or other noticeable flaws with the local dimming, but there isn't much noticeable improvement in dark scenes. For instance, the local dimming barely reacts to subtitles. When there is a long stretch of dark content, it may dim the scene a little but not by much. Because it's less aggressive, transitions between zones are quite smooth and not very noticeable. However, sometimes the local dimming seems to behave differently, as with the moving circles where it dims the background more aggressively, and zone transitions become more visible. However, it quickly goes back to its more ineffective behavior. What all of this means is that you likely won't notice the effects of local dimming much when in 'Game' mode.