There are various intellectuals who have recorded debates and lectures on youtube. It just depends on who you're interested in. If you look up any of these names on youtube or elsewhere you'll find some interesting and eloquent discourse (at least it is to me) with considerable political implications:
-Marshall McLuhan (media and communications theory)
just wanted to say before this gets lost... all heroes, had not seen all of these, i think i am also interested in implicit animosity but at the same time coherent dialog¿?
that said whom ever you are i lov u. in the truest sense of the world.