| Episode | Trivia | Appearances | Gallery | Transcript |
|---|
Trivia
- This episode's premise is similar to the episode "Hairicane" from the original series.
- A purple bow that resembles Chloe's bow can be seen in the title card.
- This plot is similar to other contemporary shows starring black female leads
- Zokie of Planet Ruby - "The Great Tangle".
- Moon Girl and Devil Dinosaur - "Hair Today, Gone Tomorrow".
Allusions
- Trial and Error - The name comes from the quote trial and error.
- Dastardly and Muttley in Their Flying Machines - ¿?
- Harry Potter - Cosmo describes the premise of Harry Potter, mainly the first movie.
- Breadwinners - In the episode, Bye Bye Booty, in which both characters take their personal belongings for granted of their styles.
Running Gags
- Cosmo not knowing what the word "spirit" means.
- Cosmo being unable to come up with a hair-related pun. This is accompanied by him going cross eyed, saying "pass," and floating away.
Errors
Quotes
Cosmo: "I'm a horse!"
| Previous Episode | Trial and Hair-or |
Next Episode |
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| v - e★ The Fairly OddParents: A New Wish References ★ | |||
|---|---|---|---|
| Original Series ★ A Fairly Odd Movie Series ★ Fairly Odder ★ A New Wish | |||
| #01 Fly | #02 The Department of Magical Violations | #03 Teacher's Pal | |
| #04 A Dinosaur in Dimmadelphia | #05 Fearless | #06 The Wellsington Hotellsington | |
| #07 1500 Minutes of Fame | #08 28 Puddings Later | #09 Trial and Hair-or | |
| #10 Weird Science | #11 Mystery She Wished | #12 Prime Meridian Love | |
| #13 Stanky Danky | #14 Peace of Pizza | #15 A New Dev-Elopment | |
| #16 Cookie's Court | #17 Work Her Magic | #18 Lost and Founder's Day | |
| #19 Crock to the Future | #20 Battle of the Dimmsonian | #21 Patty Possum’s Party Playground | |
| #22 A Date to Remember | #23 Lost in Fairy World | #24 The Treble with Rivals | |
| #25 Rattleconda Racers | #26 Dig a Little Deeper | #27 Operation Birthday Takeback | |
| #28 Potazel Potahzel | #29 The Haunting of Wells House | #30 Best of Luck | |
| #31 Hazel Wells and the Multiverse of Jenkins | #32 Growing Pains | #33 Fairy for a Day | |
| #34 Stuck in My Head | #35 Mind the Gap | #36 The Battle of Big Wand | |
