Flown plenty of them. Most airlines are not running them Part 91 anymore. But even if you are running Part 91 that doesn't relieve you of GOMs and SOPs that prohibit this kind of stuff. Like I said. All fun and games till you run into a Fed looking to make a point and you find out you didn't have the authorization you thought you had. Its happened other places with these types of videos and people got busted. Wouldn't want to be the PIC that gets busted because my FO is trying to make a buck on youtube.