How do I remove a video from the Media Gallery?
Instructors can remove media from a course site's Media Gallery without deleting it from their My Media library.
Go to the course site's Media Gallery

Select Detailed View

The Detailed View icon looks like three vertically-stacked broken lines. When Detailed View is selected, videos will display in a list with thumbnails to the left.
Find the video you want to remove from the Media Gallery

To the right of the video's title, look for small gray action icons.
Select Remove from Channel

The Remove from Channel icon looks like a small x inside a circle. Select it to remove the video from the Media Gallery.