Some real-life Rx recipes for Android - how to create Observables, when to use Subjects, how to control the observer lifecycle with Subscriptions, how to control multithreading etc. Presented at Droidcon Berlin, June 2016.
There was no video, but you can listen to the audio here: https://voicerepublic.com/talks/recipes-in-rxjava-for-android
Also, there's a video of a presentation from a slightly different set of slides:
https://www.youtube.com/watch?v=JrWTMqd_UUo