Somewhat counter intertuitively, as display technology gets better, videos will look less smooth, as their pixel response gets faster, and they produce less blur during presentation.
This is a result of movies and shows only being 24 frames per second, which is barely enough for a fluid image, and relies on image retention both in the display and our eyes to become more "fluid".
OLEDs have a much better pixel response time then eg. LCDs had, which makes them much faster and "better", although you will notice the image judder from the low frame rate more. Motion Interpolation and de-judder settings can help here. Also just increasing the brightness can help, as it then results in more image retention in your eyes.