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Season 13 of Arthur premiered in the United States on October 12, 2009, on PBS with "No Acting, Please"[1][2] and ended on April 9, 2010, with "The Secret Origin of Supernova."[3]


Screenshot Title Number Episode Original Airdate
The Great MacGrady "The Great MacGrady" 156 1 October 19, 2009
Mrs. MacGrady is diagnosed with cancer and the kids react differently. Arthur and D.W. rush to her support, Francine is scared, and Muffy is initially unaware of the symptoms, but jumps to action when she realizes how to help. Lance Armstrong guest stars as himself for the second time.
The Silent Treatment "The Silent Treatment" 157 2a October 13, 2009
George wonders whether anyone would notice if he just disappeared, and so vows not to speak until someone notices him. Of course, his friends do notice, and they decide to cheer him up with a surprise party.
Kung Fool "Kung Fool" 157 2b October 13, 2009
Fern volunteers to help an elderly neighbor, Tony Wu, with his household chores, and then discovers his past life as a Kung Fu celebrity. Suddenly she imagines herself as his student, and she will soon be a Kung Fu master herself! But will she be disappointed to learn that dish cleaning and laundry folding are not really part of some special martial arts training? Or can she learn a valuable lesson in acceptance and friendship?
Arthur Number Nightmare "Arthur's Number Nightmare" 158 3a October 14, 2009
Buster finds a piece of paper with names of his classmates and numbers beside them. He, Arthur, and Francine believe it's a class ranking system based on behavior, and Francine tries to find ways to have a higher rank.
13 Brain Gets Hooked "Brain Gets Hooked" 158 3b October 14, 2009
The Brain's addiction to a reality show called Junior Island falls him behind his schoolwork.
13x04a "MacFrensky" 159 4a October 15, 2009
Francine and the Brain are competing for Student of the Month. He is in the lead and Muffy wants her to win. Francine and Muffy frame him into doing a bad deed, so Francine becomes Student of the Month. They continue to frame other students in fear of being caught from their first plan.
The Good, the Bad, and the Binky "The Good, the Bad, and the Binky" 159 4b October 15, 2009
Binky introduces Emily into wrestling when he babysits her. Her personality changes from being nice and polite to being loud and rough. He changes her back to her normal self when she begins to hurt other children in result of her behavior.
NPA 115 "No Acting, Please" 160 5a October 12, 2009
When Fern lands a role in the Elwood City community production of It Began with a Whistle, she fears that she isn't talented enough to be a star actress. But director William Fillmore Toffman, voiced by the late Philip Seymour Hoffman, teaches her how to have fun, be herself, and truly shine.
Prunella Deegan and the Disappointing Ending "Prunella and the Disappointing Ending" 160 5b October 12, 2009
The final volume of the Henry Skreever series, "The Knights of the Bouillabaisse", is released at last. Prunella and Marina compete to see who will be first to finish it, but they soon learn that speed reading does not always pay off.
Asp-1024x846 "When Carl Met George" 161 6a April 5, 2010
George meets a new friend named Carl, who has Asperger's syndrome—a form of autism. George is unsure about how to act around him, but the Brain helps put autism in perspective for him so he can understand some of Carl's mannerisms.
D.W. Swims With the Fishes "D.W. Swims with the Fishes" 161 6b April 5, 2010
D.W. and James enter the preschool swim meet and recruit their older siblings to coach them. It all goes well until Arthur and Molly begin to get more competitive than them.
Arth TibblesDW 2414 3 "A Portrait of the Artist as a Young Tibble" 162 7a April 6, 2010
The Tibble Twins sell their artwork to raise money for a toy by using pity.
Arsubia - The secret guardians "The Secret Guardians" 162 7b April 6, 2010
Arthur, Sue Ellen, and Binky find a woodland oasis near their homes and vow to keep it a secret. Soon they start to find evidence of human habitation and wonder if they've discovered an ancient civilization.
Fernlets by Fern 10 "Fernlets by Fern" 163 8a April 7, 2010
Fern and Muffy start a greeting card business. Muffy paints the covers and Fern writes the poems. All the work makes Fern lose interest in writing, so she tries to figure out how to get make it interesting again.
4th Grade Class 2 "Prunella and the Haunted Locker" 163 8b April 7, 2010
Prunella is assigned a new locker, which is rumored to be haunted. She learns how to be brave and face her fears.
Paradise lost "Paradise Lost" 164 9a April 8, 2010
Kate begins to learn to talk, but starts to not be able to understand Pal anymore. They go to the Dolly Llama for an answer.
The Pride of Lakewood "The Pride of Lakewood" 164 9b April 8, 2010
To boost school pride, Arthur and his classmates form the Lakewood Pride Committee, which seems to pressure and brainwash students to have pride for their school. Sue Ellen and the Brain don't join the group and are accused of not loving their school.
Looking For Bonnie "Looking for Bonnie" 165 10a April 9, 2010
Famous rock musician Dean Lomax visits Elwood City and asks George's dad to fix his guitar.
The Secret Orgin of Supernova "The Secret Origin of Supernova" 165 10b April 9, 2010
Arthur is dismayed when he learns that the energy drink endorsed by Dark Bunny, his favorite superhero, is unhealthy. He goes in search for a new superhero who doesn't sell out from their principles, and ends up making his own named Supernova.


  • This is the last Arthur season released in the 2000s and first Arthur season released in the 2010s.
  • On PBS airings in the U.S., this is the first season where the official PBS Kids web address is seen at the beginning of the end credits of every episode.