The only problem with these videos is that they are NOT available at the Family History Center since YouTube is blocked. I haven't tried to use YouTube via LDSAccess at my ward but I assume that will be the same problem, so I can't show an active demonstration during my Sunday School hour class. Is there any way to get around this for the BYU Family History Library YouTube.com links?
You need to talk with your local leaders. Stake. That is not a church wide policy.
You can always download the videos to a local computer, i.e. a laptop and show them.