Tropes associated with The Oh Yeah Cartoons (Season 0)
Art Evolution: The characters look different and less refined than when the series proper premiered.
Brother Chuck: A very unusual example, Vicky had a brother in the first episode, but we only hear his voice and we never see him, and he is never mentioned again (or was replaced with Tootie).
Early-Installment Weirdness: For all characters, but most notably Cosmo and Wanda. Cosmo's voice is almost suave like a game show host and he is also somewhat more intelligent while Wanda is the scatterbrained one.
"The Big Problem!": Timmy wishes he was an adult, but ends up getting mistaken for a pervert by Vicky, forced to live on the street, and risks losing his fairy godparents.
"Power Mad!": Timmy wishes for a video game that's more of a challenge, and ends up getting trapped in there along with his friends, Chester (a poor kid with braces) and AJ (an African-American nerd).
"Transparents!": After wishing for and losing a baby dinosaur (which Chester and A.J. think is a chicken in a bad costume), Timmy's fairy-obsessed teacher, Mr. Crocker, asks Timmy to meet his parents about his project. Since Timmy can't use his actual parents, he wishes Cosmo and Wanda were his real parents.
"A Wish Too Far!": Timmy uses his fairy godparents to make him the most popular kid in school — and ends up in court for abusing his magic and not thanking his fairy godparents.
"Tiny Timmy!": Timmy goes on a fantastic voyage inside Vicki's body as part of a school project.
"Chin Up!": Comnedian and former talk show host Jay Leno guest stars in this episode where Timmy wishes his favorite comic book superhero was real, but the superhero ends up having a mental breakdown when he discovers that he's fictional.
"Dog's Day Afternoon"
"Dream Goat!": On a field trip to see Dimmsdale's mascot, Chompy the Goat, an accident makes Timmy out to be a hero while Vicky is accused of kidnapping Chompy (when Chompy was actually wished away by Timmy after seeing how unhappy he was), and things get complicated when Timmy begins wishing for horrible things in his sleep out of guilt over not telling the truth.
"The Same Game": After losing his ball to Depraved Dentist Dr. Bender (voiced by Gilbert Gottfried), Timmy (rather than wish for another ball) wishes everyone were the same, turning everyone into gray blobs and causing all the fairies of the world to return to Fairy World.
Tropes associate with season one.
Missing Episode: The Oh Yeah cartoons, except for one, were repackaged as three shorts episode, as there were so few episodes in season one. Around season four, they stopped airing these repackaged episodes when there were considerably more episodes that had been made.
The Other Darrin: For the repackaged Oh Yeah cartoons, Tara Strong redub Timmy's original voice actor, Mary Kay Bergman (who committed suicide before the show became a regular series). The DVDs of Fairly Oddparents do have the original "Oh, Yeah!" cartoon shorts in which Mary Kay Bergman voices Timmy Turner rather than Tara Strong.
"Boys in the Band"
"A Mile in My Shoes"
"That Old Black Magic"
"The Boy Who Would Be Queen"
"Totally Spaced Out"
"The Switch Glitch"
"Mighty Mom and Dyno Dad"
"Fairy Fairy Quite Contrary"
"Nectar of the Odds"
"Hail to the Chief"
"Fool's Day Out"
"Information Stupor Highway"
Tropes Associated with season 2
Missing Episode: "Hail to the Chief" and "Twistory" aren't aired much (if at all) these days for reasons unknown. Some believe the shorts had particularly offensive jokes about the British and the United States Secret Service, while others believe the episodes were the weakest of the season and were quietly shuffled out in favor of better episodes.
"Ruled Out": After they keep him from watching a dangerous special on TV about the Dimmsdale sewer gator, Timmy wishes his parents were more permissive, which goes south when they let the house and their hygiene go to pot.
"Odd, Odd West"
"So Totally Spaced Out"
"Wanda's Day Off!"
"Sleepover and Over"
"The Crimson Chin Meets Mighty Mom and Dyno Dad!"
"Most Wanted Wish"
"This is Your Wish"
"The Grass is Greener"
"The Secret Origin of Denzel Crocker!": Timmy goes back in time to the day when Mr. Crocker turned into a fairy-obsessed lunatic.
"Which Witch is Which?"
"Pipe Down!": A mostly No Dialogue Episode in which Timmy wishes for quiet after noise causes him to break his Eiffel tower model.
"The Big Scoop!": In this remake of "A Wish Too Far," Chester and A.J. are on the school news team and investigate how and why Timmy Turner is suddenly rich and popular.
"Class Clown": Timmy wishes he was the funniest kid ever, but when he tries to warn people that a dangerous plant is attacking the town, no one takes him seriously.
"The Big Superhero Wish!"
"Fairy Friends & Neighbors!"
"Just the Two of Us!": Timmy wishes he and his crush, Trixie Tang, were the only two people left on Earth, and soon discovers that, without any other boy to fawn over her, she becomes a bit clingy and deranged.
"Just Desserts!": Timmy wishes every food in the world was desserts and sweets, which turns everyone overweight (a bit of real-world satire).
"Go Young, West Man!"
"Blondas Have More Fun!"
"Five Days of FLARG"
"Timmy's 2D House of Horror"
"It's a Wishful Life": In this base-breaking episode (with most fans saying this is the worst episode ever), Timmy's good Samaritan kick gets him chastised for not following everything to the letter, so Timmy wishes he were never born — and Jorgen shows him a world where everyone benefits from Timmy not existing.
"Escape from Unwish Island"
"The Gland Plan"
"Back to the Norm"
"Teeth for Two"
"Hassle in the Castle"
"Remy Rides Again"
"The Masked Magician"
"The Big Bash"
"What's the Difference?"
"The Good Old Days!": Timmy gets babysat by his grandfather, who opens him up to the world of the violent theatrical cartoon shorts he grew up on — and Timmy wishes that their life was like a black-and-white cartoon from the 1930s.
"Future Lost": After finding an old sci-fi comic in the attic, Timmy wishes his life took place in the future, complete with robots, automated houses, and jetpacks.
"No Substitute for Crazy!": After Crocker is injured, Timmy's class gets a substitute who is a better teacher than Crocker ever was — until Timmy finds out that the substitute is a fairy hunter and out to look for kids with fairy godparents.
Tropes Associated with season 5
Series Fauxnale: This was supposed to be the last season, but the decision was retracted and it was renewed for a sixth season.
"Open Wide and Say Aaagh!"
"The Fairy Oddlympics"
"For Emergencies Only"
"Cheese and Crockers"
"Land Before Timmy"
"The End of Universe-ity"
"Vicky Gets Fired"
"Dread 'n' Breakfast"
"Formula for Disaster"
"Bad Heir Day"
"Freaks and Greeks"
"Dadbra-Cadabra": Timmy wishes his father was a professional magician, and Crocker thinks Timmy's dad is a fairy godparent.
"One Man Banned"
"Double Oh Schnozmo!"
"The Boss of Me"
"He Poofs, He Scores"
"Play Date of Doom"
"Crocker of Gold"
"Beach Blanket Bozos"
"The Old Man and the C-"
"Balance of Four"
"Please Don't Feed the Turners"
"Take and Fake"
Tropes associated with season 7
Schedule Slip: The season seven episodes were shown out of order at least in the United States. In fact, when Season 8 premiered several season 7 episodes had not been aired.
Screwed by the Network: Many American fans had to wait months, and in one instance, a year for the entire series to air while other countries got to see the episodes firsthand.
Short Run In Peru: Many of these episodes were shown in other countries months before they aired in the United States.
"Invasion of the Dads"
"When L.O.S.E.R.S. Attack"
"Meet the Oddparents": Timmy's parents finally discover that Timmy has fairy godparents and begin using them to make their dreams come true.