The characters' Halloween costumes in "Darby's Halloween Case" were as follows:
Darby - Cat
Buster - Lumpy
Tigger - Rabbit
Pooh - Vampire
Piglet - Super Sleuth
Turtle - Jack-o-Lantern
Porcupine - Fairy Princess
Rabbit came dressed as himself, though Tigger forced a clown nose onto him. Once Darby, Tigger, Pooh and Buster got changed for their Super Sleuth case, Darby was the only one of them who retained any elements of her costume.
Given its Halloween theme, this episode will repeat a number of times after its original broadcast on Playhouse Disney, including on both the day before Halloween and Halloween itself.
Newcomer Sydney Saylor voices a pair of possums in "Topsy Turvy Tigger."
"Topsy Turvy Tigger" features the first and possibly only use of the song "Think, Think, Think a Little Harder." This features a new animation and was used when the Super Sleuths were very stumped and decided that they needed to do even more thinking.
"Nothin' Can Bounce Like a Tigger," a song used in one of the Playhouse Disney stage shows and also featured on the "Playhouse Disney Music Play Date" album is used for the first time in the TV series in "Rabbit's Song for a Pumpkin."
The events of "Easter Rabbit" directly contradict continuity according to the 2004 film Winnie the Pooh: Springtime with Roo. In that film, which was said to depict both Roo's first and second Easter, Rabbit was happily the Easter Bunny. In "Easter Rabbit," however, both Roo and Lumpy are present for Easter and claim to have discovered that Rabbit is the Easter Bunny, only for him to deny it and then try to take on the job.
There are seven candles on Porcupine's birthday cake in "Rabbit's Sound of Silence."
The program's opening theme has been altered and changed for every episode-- Chloe Moretz as Darby now performs the theme instead of Kay Hanley. Additionally, Darby pops in front of the show logo at the end and sings "Darby, Tigger and Pooh." A new song has been added, "The Question Song." "The Question Song" is now used on a rotating basis with "Think, Think, Think."
Rabbit performs his Spring Has Sprung concert tune about vegetables to the tune of "La donna è mobile."
Rabbit comments that he asked Santa for a subscription to Rutabaga Monthly, "for the articles of course." This is a rather adult reference -- many readers of Playboy magazine, known for its adult pictures, claim to read it only for the articles.
Surprisingly, when Kanga sends Roo and Lumpy out to play in the snow, she does not require Roo to don any winter weather gear, but simply lets him go out and play.
"Many Thanks for Christopher Robin" is a Thanksgiving-themed episode, though the holiday is instead referred to as "Many Thanks Day." The story of "Turtle's Need for Speed" may be a subtle reference to the Aesop's fable "The Tortoise and the Hare."
For those viewing the program on Playhouse Disney in the United States, this episode features the first appearance of Darby's friend Christopher Robin. Viewers in some other markets, however, including the U.K., have already seen him in "Christopher Froggin'."
David Hartman is the director for "Chasing Pooh's Rainbow," Nicole Dubuc is the writer. Kirk Van Wormer is the storyboard artist and Brian Hohlfeld is the story editor. Don MacKinnon is the director for "Lumpy Mixes A Mystery," Janna King Kalichman is the writer, Roy Meurin is the storyboard artist and Dean Stefan is the story editor.
For the first time in the series, Tigger does not say "This mystery is history!" at the end of either story.
The gang officially meets Beaver in this episode, though he was also seen in "Tigger's Bedtime for Bouncer."
Lumpy sleeps with a stuffed alligator named Alvin and Darby sleeps with a stuffed monkey named Billy Boo.
Close-captioning incorrectly lists Darby's name as "Avery" a few times throughout "Roo's Kite-Tastrophy."
Darby's name is misspelled several times as "Darcy" on close-captioning for "Tigger's Shadow of a Doubt."