Watching YouTube - with alternatives

is popular tool for teachers to use to hide distracting sidebar and "related" content when playing YouTube videos in their classrooms.

Watchkin is a service that provides a ways to watch YouTube videos without seeing the related video suggestions and comments. You can enter the direct URL of a video into Watchkin to have the sidebar content removed. Watchkin also offers a browser bookmarklet tool that you can click while on YouTube.com to have the related content disappear from the page.

Quietube is a convenient tool that you can add to your browser's bookmarks bar. With Quietube installed you can simply click it whenever you're viewing a video on YouTube and all of the related clutter will be hidden from view. Installing Quietube requires nothing more than dragging the Quietube button to your toolbar.

SafeShare.tv makes it possible to view YouTube videos without displaying the related videos and associated comments. To use SafeShare.tv simply copy the URL of a YouTube video and paste it into SafeShare.tv.