I just thought I'd put up some of my favorite YouTube videos about the Book of Mormon.
This is taken from one of my favorite talks, "Safety for the Soul." It was given by an Apostle, Jeffrey R. Holland, a few years ago.
This is an audio recording of a talk given a long while back, called, "Profile of a Prophet."
This isn't actually from YouTube; it's taken from a talk given back in 1988 by Hyrum W. Smith. "The Restoration of the Church, or Why 1820?" If you wish to read along as you listen, the text is right here.