Are TEDTalks copyrighted?

Last updated: Nov 27, 2012 01:00PM EST
Yes. TEDTalks are distributed under a Creative Commons (CC) license. This doesn't replace copyright – which remains undivided with TED Conferences LLC – but it makes the terms more flexible. Anyone is free to download the videos from; share them with friends; republish or embed them on their website or blog. But this use must be made within the terms of the CC license "Attribution – NonCommercial – NonDerivative."
This Creative Commons license allows you to reproduce, distribute, display or perform publicly the TEDTalks as long as you follow these guidelines:
Attribution: you reference explicitly TED as the original source of the materials, and TED's logos and visuals as well as those of the TEDTalks sponsors remain untouched and unedited. 
NonCommercial: You can't use TEDTalks (or any parts of them) for commercial purposes
NonDerivative: You cannot alter the videos in any way (edit, remix, cut, etc). These conditions can be modified only by explicit permission of the copyright holder (TED Conferences LLC).

The complete text of the license can be seen on the Creative Commons (CC) license.
TED's usage policy can be seen here

Not what you're looking for?