I think the "4K upscaling" is just a marketing term rather than actual upscaling as the original quality stands there.
However, some video enhancements (fabrication) could be possible as our eyes are not accurate machine but easily affected subjectively.
You might use the TrueTheater features to increase some video sharpness, brightness, contrast, or saturation during playback.
For me, I just like the original taste even though it is at lower resolution.
This message was edited 1 time. Last update was at Mar 14. 2019 21:53