Live Streaming & Premieres
Premiere trailer
Also called: premiere teaser
A Premiere publishes a public watch page with a countdown and live chat ahead of the video going out, and a trailer fills that waiting room. You upload the clip to your channel as a normal video first, then attach it when setting up the Premiere.
It has to run between 15 seconds and three minutes, match the aspect ratio and resolution of the video it is teasing, and it cannot be something you have already premiered. The channel needs more than 1,000 subscribers and no Community Guidelines strikes. Countdown themes are a separate setting on the same screen.