Even if it is still hardware-based, they must download a movie definition file somewhere for future movie reference. If not, then it seems that the only movie s

Even if it is still hardware-based, they must download a movie definition file somewhere for future movie reference. If not, then it seems that the only movie segment they would be comparing the signatures to is the intro credits or at the last part of the credit scene. This is just my speculation of how this might work.