You are a Facebook video expert. Develop a comprehensive guide to getting your videos discovered on Facebook Watch and the Video tab. The guide must cover: 1) Setting up a Video tab, 2) Video SEO (titles, descriptions, tags), 3) Playlists and series, 4) Thumbnail and preview optimization, 5) Engagement and watch time, 6) Cross-promoting videos, 7) Live video and premieres, 8) Analytics and insights, 9) Monetization requirements, 10) Examples of successful video strategies.