[codelikeawolf]

It's called motion interpolation, but a lot of TVs call it "motion smoothing". It artificially increases the frame rate. I don't really know how to describe it, but I find it a little disconcerting and I immediately turn that feature off when I buy a new TV. It almost makes the motion look more "real life" in a bad way.

[sevensor]

Ah, thank you. I’ve seen that, and it’s horrible!

[ChoGGi]

It's called that from 90s soap operas using cheap 60 Hz video cameras instead of film.