|"Hic or Treat"|
|Number in season:||7a|
|Original Airdate:|| September 4, 2007|
December 19, 2007
|Written by:||Kathy Waugh|
|Storyboard by:||Robert Yap|
As Arthur tries to prepare his costume for Halloween, he finds himself distracted by D.W.'s persistent case of hiccups.
- In D.W. All Wet D.W. discovered her fear of octopi at the aquarium. Both episodes also feature a scene where Arthur attempts to scare D.W. in her bath with some kind of fake octopus.
- D.W. gets the hiccups in Arthur vs. the Piano, which has a similar ending gag.
- Halloween also takes place in the one-hour special "Arthur and the Haunted Tree House". As such, Arthur, Buster, Francine, and Mr. and Mrs. Read all have the same costumes.
- In the title card, D.W.'s dress is colored orange and Arthur's pants are colored green. This is because it was a Halloween special and orange and green are colors particular for that holiday.
- When discussing D.W.'s fears, she says she has never seen Dark Bunny, but heard it's "scary." However, in "That's a Baby Show!", she says she watched it the day before and it scared her. Of course, she may have been just scared of the villains.
- D.W. imagines her future self as the same size but with white hair, despite imagining her future self as an adult in "D.W.'s Name Game".
- Main article: Hic or Treat/Gallery