TED Talks
This link connects you to TED Talks that are specifically about mathematics.
YouTube
Stand-up Maths
Matt Parker is possibly the only person to hold the prestigious title of London Mathematical Society Popular Lecturer while simultaneously having a sold-out comedy show at the Edinburgh Festival Fringe. Matt is also the Public Engagement in Mathematics Fellow at Queen Mary University of London.
3Blue1Brown
3Blue1Brown is some combination of math and entertainment, depending on your disposition. The goal is for explanations to be driven by animations and for difficult problems to be made simple with changes in perspective.
Mathologer
Enter the world of the Mathologer in which beautiful math(s) rules. The Mathologer is Burkard Polster, maths professor at Monash University in Melbourne, Australia.
Numberphile
Videos about numbers by Brady Haran. Support comes from the Mathematical Sciences Research Institute and Science Sandbox, a Simons Foundation initiative.
PBS Infinite Series
Mathematician Kelsey Houston-Edwards offers ambitious content for viewers that are eager to attain a greater understanding of the world around them. Math is pervasive - a robust yet precise language - and with each episode you’ll begin to see the math that underpins everything in this puzzling, yet fascinating, universe.