I am using this code to embed a playlist:
<iframe width="816" height="459"
src="https://www.youtube.com/embed/videoseries?list=xxx"
frameborder="0" allowfullscreen="">
To hide the related videos, normally I add ?rel=0
(that's in the case of a single video embed), but if I try it here:
<iframe width="816" height="459" src="https://www.youtube.com/embed/videoseries?list=PL4Zkb_7gMrOzZlVy7jIeCjwScavYp6ssm?rel=0"
frameborder="0" allowfullscreen="">
</iframe>
I get the "bad video" fuzzy YouTube screen (sorry, I don't know the technical term for this)!
There is no "hide related" option in the YouTube "SHOW MORE" settings for the playlist.
You have to use the '&' when adding more parameters to the url. Update the src field with following.
"https://www.youtube.com/embed/videoseries?list=PL4Zkb_7gMrOzZlVy7jIeCjwScavYp6ssm&rel=0"