YTP: Arthur Writes a YouTube Poop (Arthur YTP) 

Yeah, let's face it, I can't stop making Arthur YTPs! My YTPs are definitely funny.
Arthur writes a YTP that everyone will love, but he needs YTP training to complete it.
And yes, I kept the same intro from "DW Meets Donald Trump", cause I can't think of anymore jokes for the Arthur intro.
Arthur Episodes:
Arthur Writes a Story
Arthur's Big Hit
Arthur Makes a Movie
DW Goes to Washington
Sources:
Hotel Mario
Jack Black Defines Octagon (Sesame Street)
Steamed Hams
ASDF Movie 2
Super Mario World (Cartoon)
History of Japan
Irate Gamer
Willy Wonka and the Chocolate Factory
Meet the Heavy (TF2)
ASDF Movie
Some explosion video
Bootleg Pokemon Games (JonTron)
History of the Entire World, I Guess
Filthy Frank
Meanwhile
LarryBoy and the Fib from Outer Space
Meet the Medic (TF2)
Running in the 90's (Remix)
Michael Rosen
Zelda: The Wand of Gamelon (only in intro)
Mario Teaches Typing 2 (only in intro)
John Cena Meme (only in intro)
Google images used throughout