Technology, Entertainment, Design.
Put the first letters of these three together and you get "TED".
Yeah, me too, my grandfather's name was Ted.
I had a stuffed animal bear with that name too.
Oh, and then there are the increasingly well-known "TED Talks".
There are several variations, including the TED-ed video clips.
My friend Laura Morelli has recently posted a fun and informative video to that collection:
It's a fun and educational piece of video.