Yep, TED.

It is an awesome Youtube show. TED is an organisation that invite people to give talks about almost any topic under the sun. "Ideas worth spreading", as they say. Very often, the speakers are extremely inspiring and touch topics from wars to human/animal orgasms. The speakers are usually good public speakers too and can be deemed as role models in the area of speaking in public. Of course, there are less interesting speakers too, like the one in "Brain Magic". He demonstrated a list of magic tricks based on deceiving the brain by shifting audiences' attention. Yet he failed to explain the significance behind such actions.

Highly recommended for general knowledge and better, general knowledge delivered in an interesting way!