I was talking with a buddy about some of my favorite cartoons and I brought up Thundercats.  My buddy started referencing "Blunder Cats" which features outtakes of the original voice actors, cussing and making inappropriate comments.  I guess it's been on the internet for years, but I just now found it.

 

First of all, this video features a lot of swearing.  That's why it's funny.  Second of all, not only did I just find this Blunder Cats video, I also just found out the grandpa from The Cosby Show was the voice of Panthro.  Which is pretty much blowing my 80's mind.