Some years ago I saw one episode of TV show that made a fun of movies (I think).
Because I saw only one episode I can't say so much of show in general but I can tell about episode I saw.
It was about Horror Express, 1972 horror movie that is in public domain (that's the reason I think they used it),
and they basically added text and speech bubbles that were meant to be funny (and they were).
I don't remember if they altered it more like adding scenes from other movies and so.