Weird Field Blending

[simple_simon]

Anybody have any idea what's going on in this sample? It's an American cartoon taken from a NTSC DVD so it should be a simple telecine but there's some weird field blending going on that doesn't make any sense to me. I thought maybe a PAL converted source telecined back to NTSC but I don't think that's it either.

https://www.mediafire.com/file/4wy8gf6eac3zp1n/B2_t01_%25281%2529-002.mkv/file

[Selur]

The original animation probably was not 23.976 but more like 8 fps and then someone created the missing frames by inserting blends.
So to get a result with fewer blends/artifacts, try finding a pattern to get the unblended frames (using SelectEvery, if not fixed pattern can be found TDecimate in mode 7 or sRestore might help) and then either stick with the new frame rate or use motion interpolation to get to your desired frame rate.

[simple_simon]

I've seen animation before where they cheat and animate at 12fps or less and blend the frames to fill in the remainder but, from looking at it, I don't think that's the case with this. Especially considering this was 1 of 6 tv specials done by the same studio and all of the others are fully animated without blending.