Opening & Intro to RL, Part 1, by Joshua Achiam at 25:11
Intro to RL, Part 2, by Joshua Achiam at 1:48:42
Learning Dexterity, by Matthias Plappert at 2:26:26
AI Safety: An Introduction, by Dario Amodei at 2:58:00

Recorded on Feburary 2, 2019.

Learn more: https://openai.com/blog/spinning-up-in-deep-rl-workshop-review/