>>106838088
>24000/1001
Pretty much everything in (literal) kino is a mess, because it's just patch upon patch since the 1920s, where e.g. 24fps first got defined, because sound started to be used in film and that required a standard frame rate.

Fast forward thirty years
>In December 1953, the FCC unanimously approved what is now called the NTSC color television standard (later defined as RS-170a).
>The compatible color standard retained full backward compatibility with then-existing black-and-white television sets.
>Color information was added to the black-and-white image by introducing a color subcarrier of precisely 315/88 MHz (usually described as 3.579545 MHz±10 Hz).[19]
>The precise frequency was chosen so that horizontal line-rate modulation components of the chrominance signal fall exactly in between the horizontal line-rate modulation components of the luminance signal, such that the chrominance signal could easily be filtered out of the luminance signal on new television sets, and that it would be minimally visible in existing televisions.
which thusly led to picrel
>Due to limitations of frequency divider circuits at the time the color standard was promulgated, the color subcarrier frequency was constructed as composite frequency assembled from small integers, in this case 5×7×9/(8×11) MHz.[20]
>The horizontal line rate was reduced to approximately 15,734 lines per second (3.579545 × 2/455 MHz = 9/572 MHz) from 15,750 lines per second, and the frame rate was reduced to 30/1.001 ≈ 29.970 frames per second (the horizontal line rate divided by 525 lines/frame) from 30 frames per second.
>These changes amounted to 0.1 percent and were readily tolerated by then-existing television receivers.[21][22]
https://en.wikipedia.org/wiki/NTSC#History
...nice, eh?
(If you can, get EU DVD versions for better picture PAL 576p vs NTSC 480p; but pay attention to fps shenanigans and original recording, i.e. Telecine and interlacing shenanigans)