"I can't seem to get the video links to YouTube videos work on my page. I've followed the letter to the 'T' but the vids just won't show. How do I solve it?"
It may be that you're in preview mode. Some features don't seem to show in there. Try publishing the page as shown in the training. It might also be how you entered the YouTube video info in the block settings. You need to put last part of the YT video url after the & symbol.