One thing to note about the TB us that it has been slightly sped up for its PAL conversion.
Yes, the original 24 fps is is preserved in the 25 fps PAL, same for GKAR. Same for any PAL laserdisc. PAL sources are actually the best for preserving and restoring the original 24 fps. It is a simple matter to slow them back down to the 23.976 fps video standard that is used for movies. The audio usually suffers a bit, but the picture benefits greatly.