Hey when you copy the embed code from youtube, there should be an option to turn that off (usually a checkbox below the code you copy)… or just modify the code by adding ?rel=0 immediately after the iframe url like I did below.
Thanks for the suggestion, Kevin. It’s the right solution indeed.
Adding the ‘rel’ attribute to the slide’s video ID wouldn’t work in the back-end, as it’s broken down when creating a slideshow out of it.
I’ve added an option that defaults to not showing related videos after the YouTube player is finished playing the video. This option will be available in the next update, version 2.2.12. I’m hoping to relase it within the next couple of days.