Hi gang. A friend is writing an article about the Hitler Downfall parodies and is trying to find the 1st instance -- of course KYM forums are the place to go with this kind of hunt…
He is currently looking through non-profit YouTube archiver YouTomb in case the 1st was taken down due to C&D, but currently believes this video is the 1st (which hasn't been taken down): https://www.youtube.com/watch?v=T8dl4faCpJE