Yeah, this is really well done. Editing a few compilation videos for youtube teaches you to respect the scholarship involved in being able to locate all these clips.
Incidentally, there's no brain in Chuck Noriss' skull. Just another fist.
The one that will forever blow my mind the most is the Dirty Potter editing job on the audio books. I can't even begin to imagine the amount of work that must have taken, especially the poetry section on food.