The video was called "Why our perception of pedophilia has to change" and was discussed in this Voat thread: https://voat.co/v/pizzagate/2596162

http://www.breitbart.com/tech/2018/06/22/ted-talk-organization-under-fire-for-bizarre-pedophilia-lecture/

"The TED Talk organization immediately took down the video in response to a massive online backlash against the talk." In a statement, they said, "We will continue to take down any illegal copies of the talk posted on the Internet."

"...after contacting the organizer to understand why it had been taken down, we learned that the speaker herself requested it be removed from the internet because she had serious concerns about her own safety in its wake."

Another TED production with exactly the same talking points called "Let's be mature about pedophilia" remains on You Tube: https://youtube.com/watch?v=egiBgmvv8wAHookTube