I'm surprised this has its own IMDb article. TEDTalks is a series of an incalculable number of YouTube videos were people just talk about important things in front of a crowd. It's just a person talking to an audience. The official YouTube channel has 175,129 videos in it! This website only lists 233 listings. This series is amazing because you get so many perspectives. Its biggest strength might be how it talks about anything you would ever want to talk about.
Obviously, you are going to disagree with some things featured. You can instead simply find a video that agrees with you. While that may seem shallow, you can certainly agree with it. These people are usually quite intellectual. It is not to be confused with the channel simply titled "TED" with only 3,798 videos. I don't even know the criteria for appearing in these videos.
It seems like anyone can appear in them. I think my favorite is "Why I, as a black man., attend KKK rallies". They are usually messages of hope and how to live. You can literally spend eternity watching all of these videos. They even have TEDtalks "about" TEDTalks! These range from 10 to 35 minutes, so start anytime you want! ****