Video was the topic of Bob Konferenz’s 2018 keynote. You can find a recording of the on the conference page, or below. The talks begins with the same introduction as the one I gave at RacketCon 2017, but goes into more detail on the tower of languages that Video is made of.
I recently gave a talk about Video at RacketCon 2017. The Video goes over the basics of the language’s API and gives some incites on the tower of DSLs Video runs on. If you haven’t watched the Video yet you can find it below.