http://www.ted.com/talks/robert_full_on_animal_movement.html
https://www.youtube.com/watch?v=oEZrAGdZ1i8
Notice that I still picked a heartwarming personal story for the second one. See how different it is in delivery and intent to the heartwarming personal stories you get on there today.
Let me reiterate: I don't care about the audience - they don't affect me. It's the type of speaker which is attracted by the new, larger demographic that I don't like. The talks aren't written for the room any more, they're written for youtube, and by extension, the speaker's resume and lifetime earning potential. Compare the speakers' eyelines in those talks vs the new ones.