Fractured Flickers

I watched this when originally aired, usually after the Bullwinkle and Rocky Show.  MOVIES! channel runs these now.  I wonder where they found the films they take the clips from.  I don't remember seeing the silents these clips came from.  And getting rights must have been easier.  WIKI states that Lon Chaney Jr. unsuccessfully sued about their use of his father's HUNCHBACK OF NOTRE DAME.

If anyone has info about how Jay Ward, the creator, managed to get the clips, etc. I'd love to know.