I'm not able to watch the video right now, I'll have to check it out when I get off work.
In college I took an animation class and wrote a paper about how the Fleischer brothers' Superman influenced Batman: The Animated Series. It's funny, but if I have my facts straight, it was Max Fleischer who gave Superman the ability to fly instead of just "leap a building in a single bound".
Additional fun Batman TAS fact: many of the backgrounds were drawn on black paper which gives the series it's very distinctive dark look.