Which frames? How do you know that there aren't any additional "Easter eggs" that are yet to be discovered/documented?
So I devised an Avisynth script that takes the French video, colour-matches it to the Blu-ray and attempts to align the two sources spatially by using simple manual crop & resize. The script then "subtracts" one from the other.
If the two videos were identical to one another, they would cancel each other out and you'd be left with a totally grey screen. However, because the BD is sharper than the HDTV source, and the edges aren't exactly aligned, you end up with a ghostly image of the original:
Where there are significant differences between the two, you end up with black or white artefacts. For example, the dirt spot and the hair on this frame in the HDTV source
Do not appear on the BD, so you get this:
This is also true of places where the animation has been redrawn, thus:
