You think this: https://www.youtube.com/watch?v=4GPpYseUZck is more exciting than a TED talk?
I guess it's subjective...
The point of TED talks isn't that they're supposed to have a stand-up comedian's level of presentation skill. It's about captains of industry talking about their slice of the world.
Also, James Mickens in the systems community (and also a colleague at MSR) is really good. He tends to go off the wall a bit more, but that is just part of his rhythm.