Get your audience excited about your scheduled live stream by showing a trailer. Your trailer will play for viewers on the watch page before the live stream starts. Trailers can be played on streams scheduled from the “Manage” tab in Live Control Room. Upload your trailer to your YouTube channel like you would with a regular upload. More @Wikipedia
Hover over any link to get a description of the article. Please note that search keywords are sometimes hidden within the full article and don't appear in the description or title.