Hi,
There are a lot of YouTube tutorials on how to make this checkmate, however I have to say that some (even the pretty popular ones with 100,000s of views) are not explained well at all. I think this old one made by Danny Rensch does a good job.
https://www.youtube.com/watch?v=ur3mVl0bdog
Can anybody post a video on this? Thanks in advance. There is a drill at https://www.chess.com/drills/practice/bishop-and-knight-mate-the-edge. Kindly don't post link to this. I want illustrative video on this.