It was South Park. Season 10 - Mystery of the Urinal Deuce. Trying to solve who bombed the Twin Towers and they bring in the "The Hardly boys" (based on the Hardy boys the book franchise and not the wrestlers). I'm South Park go-to guy.
Anyway, I've been critical of the admins in some posts so I'll use this post to say that I think this situation was handled very well. Although he was in the wrong, credit for HammerHead for owning up.
Shit yes, South Park, sorry. Don't really watch it so confused it with Family Guy which I started watching about a month ago.