That has its own issues - you can’t completely “smoothly” convert 24FPS source material to 60FPS, and many viewers can detect the uneven frame cadence when this

That has its own issues - you can’t completely “smoothly” convert 24FPS source material to 60FPS, and many viewers can detect the uneven frame cadence when this is done due to the inconsistent introduction of extra frames to get it to fit the 60FPS cadence. You can often see it in slow panning shots, were it introduces a perceptible judder to the video. While the Wikipedia article on 3:2 pulldowns mainly discusses converting 24FPS film to 30/60 FPS broadcast, the same conversion is virtually always done on digital material as well, in software at playback time or by the video codec changing the frame rate. As mrob also writes, you only get smooth frame rate changes usually if the new frame rate is an integer multiple of the original one, as then the extra frames introduced is consistent. This is why 30FPS video doesn’t have this problem at 60hz, but 24FPS does. > https://en.wikipedia.org/wiki/Three-two_pull_down https://en.wikipedia.org/wiki/Three-two_pull_down