Heads up! We’re aware of an issue in YouTube Analytics impacting data reporting for yesterday (Oct. 2nd). You may see differences between Analytics data and your video’s watch page. We’re looking into why this happened! Details & impacted metrics here → https://goo.gl/szQFfV
While we can’t cover specifics about the impact, we’ve added much more detail & best practices to our ad-friendly guidelines: https://goo.gl/EnR41v . Also, you can create channel with only audio and fixed picture video as long as the content is original. Hope this helps!