Pop! Tech looks very similar to TED Talks. It brings in “big thinkers” to give short presentations.
The major drawback, however, is that, unlike TED Talks, Pop! Tech uses Vimeo to host their videos, which means that most school content filters will block access. There are certainly ways to use them in schools (see The Best Ways To Access Educational YouTube Videos At School), but it will take more work than the TED Talks, which host their videos on their own site and is usually unblocked.
It definitely does have some great stuff, though, and is worth a periodic visit. I’m adding it to The Best Teacher Resources For “TED Talks” because of the similarities.