Unfortunately, Twitch affiliates cannot stream on YouTube and Twitch simultaneously. However, you can stream on YouTube if you are not streaming the same content on Twitch within 24 hours.
Here are the specific sections of the Twitch affiliate agreement that specify what a streamer can do:
- You can’t, under any circumstances, stream “Live Twitch Content” simultaneously. (Section 2.2 of the Twitch Affiliate Agreement)
- You can’t stream or upload content that you streamed on Twitch to any other platform, including your YouTube account, for 24 hours. (Section 2.2 of the Twitch Affiliate Agreement).
Twitch affiliates that stream break these rules, and stream content on YouTube, Facebook, or other platforms, can get banned. To end your agreement with Twitch, reach out to the Twitch support team via their support page.
Before you can begin live streaming on Twitch from a PS4 or other device, please read https //www.twitch.tv/activate for more information.