In How I Met Your Mother a recurring joke was that Barney "doesn't get movies", so in the Karate Kid he roots for Johnny Lawrence whom he claims to be the actual karate kid.
Later, Robin organizes a bachelor party for Barney and invites "the wrong Karate Kid", Ralph Macchio who is all suited up and kind of a Barney.
Now, YouTube has released via YouTube Red a new series continuing the events of The Karate Kid in which Johnny Lawrence is down on his luck (and apparently never got over his illegal defeat), and Daniel LaRusso is a suit-clad business man who is (at least a little bit) like Barney.
They even bring up the illegal face-kick thing, something that was also mentioned once or twice by Barney.
Was there any inspiration from the How I Met Your Mother incorporation of Billy Zabka and the Karate Kid when deciding to make the Cobra Kai series?