In the nine seasons that it aired, How I Met Your Mother joined a rare category of sitcoms, amassing a fandom that still talks about the show years after its finale has aired.
Throughout each of those seasons, there are plenty of interesting facts and hidden details that even the most loyal fans might not have found. We’ve combed through those details to create the hardest How I Met Your Mother trivia quiz you’ll ever take.
So suit up and get ready for the most important HIMYM quiz you’ve ever taken.
(All images via 20th Television)