History Main / AgelessBirthdayEpisode

* Initially averted in ''ComicBook/SonicTheHedgehogArchieComics'' when one issue has him celebrating his 16th birthday. When another issue has him celebrating a birthday, Rotor questions how old Sonic actually is by now (thanks to adventures in space, Mobius went through a year of changes while Sonic didn't age at all). Sonic replies they should just think of him as a "teen" forever and ever, thus invoking VagueAge should another birthday issue come up.

* ''Series/{{CSINY}}': Mac Taylor celebrates his birthday at the opera with then-girlfriend Peyton Driscoll in season 3. They share a cupcake from a vending machine later after he get called back in to work, but his age is never revealed.

* In ''Franchise/PowerRangers'' whenever a Ranger celebrates a birthday, no age will be mentioned. The most notable being the first time it happened in [[Series/MightyMorphinPowerRangers the first season]] in "Happy Birthday Zack" perhaps for the best since the characters, originally meant to be high school juniors or seniors at the time, were retconned into being freshman due to staying in high school for four seasons. Giving out an actual age would have ended in a continuity error.

** In "Eugene's Birthday", Arnold tries to throw Eugene a surprise birthday party, (with unsuccessful results) but never mentions Eugene's new age.

This trope occurs most often in children's cartoons and more kid-friendly sitcoms, and goes hand-in-hand with NotAllowedToGrowUp. This is most likely because, well, [[FridgeBrilliance kids love birthday parties, and they associate it more with parties, fun and presents than turning a year older.]] This allows them to use it even though characters can't show actual signs of aging. However, it also frequently appears in more adult works, where it is decidedly less justified. If the only evidence of the character's age is what he says in casual conversation, it could be due to the character lying about his or her age, simply because an older age (the character's true age) is seen as less desirable than a younger one; it could, also, simply be a result of the character's exact age being [[LawOfConservationOfDetail unimportant to the story.]]

** "Little Bad Dress" takes place at Raquelle's half-birthday party, but the cartoon never specifies which half-birthday it is. (The cake only has four candles, but Raquelle looks older than four.)

* ''WesternAnimation/{{Rugrats}}'':

* ''WesternAnimation/ScoobyDooPiratesAhoy'' takes place during Fred's birthday. The closest we get to his age getting mentioned is a gag where the Gang thinks he's saying he's turning 37, but it turns out he didn't hear the question and was naming off the dock numbers while looking for the one their cruise ship is at. The number is also a meta reference to the fact that the movie was released 37 years after the [[WesternAnimation/ScoobyDooWhereAreYou original show]] first premiered.

* ''WesternAnimation/ScoobyDooPiratesAhoy'' takes place during Fred's birthday. The closest we get to his age getting mentioned is a gag where the Gang thinks he's saying he's turning 37, but it turns out he didn't hear the question and was naming off the dock numbers while looking for the one their cruise ship is at.

* ''Film/SpiderMan2'' has Peter's family throwing him a birthday party with no mention of his age. But since Aunt May referred to Uncle Ben's murder being two years ago we can infer that Peter turned 19 or 20.

* ''WesternAnimation/ScoobyDooPiratesAhoy'' takes place during Fred's birthday. The closest we get to his age getting mentioned is a gag where the Gang thinks he's saying he's turning 43, but it turns out he didn't hear the question and was naming off the dock numbers while looking for the one their cruise ship is at.

* ''WesternAnimation/JackieChanAdventures'': Jade and Uncle both have these. Uncle's is in "The Dog and Piggy Show" while Jade's isn't until a much later episode called "Black and White and Chi All Over", although in the former, it is stated that Uncle was born in the year of the dog. Since Uncle appears to be in his 60s or 70s at the time the show started (2000), this would mean he was most likely born in either 1922 or 1934.

** In "Radio Bart" Bart has a birthday, and almost states his age, but is cut off by an animatronic band beginning to play "Happy Birthday". "Treehouse of Horror III" has him celebrate a birthday, but no age is given.

* Initially averted in ''ComicBook/SonicTheHedgehogArchieComics'' when one issue has him celebrating his 16th birthday. When another issue has him celebrating a birthday, Rotor questions if he should be 16 or 17 (thanks to adventures in space, Mobius went through a year of changes while Sonic didn't age at all). Sonic replies he should be 16 forever and ever, thus invoking this trope should another birthday issue come up.

** Lisa has had a number of these but remains 8. Averted in "Stark Raving Dad", when she officially turns 8, and in "Treehouse of Horror XXXII" where she turns 9 (although this episode is non-canon).

* ''Wiki/HarveyGirlsForeverFanon'': The episode "Gerald" takes place in the Fireworks Week celebration that Lotta goes for her birthday. She is about to reveal her age, but the fireworks begin right away.

A staple in most children's cartoons and kid-friendly sitcoms is the Ageless Birthday Episode. This is an episode that centers on a specific character's birthday but never mentions the character's new age. If this character's actual age is part of the show's status quo, then [[StatusQuoIsGod you can expect their age to remain the same even after the "birthday episode."]] The inevitable [[TwentyFourHourPartyPeople numerous guests and fancy decorations]] at their birthday party raise even more curiosity as to what this character's age is, as such a party would only seem to make sense during a monumental birthday like their 18th or 21st, the lattermost only being important in the United States.

A staple in most children's cartoons and kid-friendly sitcoms is the Ageless Birthday Episode. This is an episode that centers on a specific character's birthday but never mentions the character's new age. If this character's actual age is part of the show's status quo, then [[StatusQuoIsGod you can expect their age to remain the same even after the "birthday episode."]] The inevitable [[TwentyFourHourPartyPeople numerous guests and fancy decorations]] at their birthday party raise even more curiosity as to what this character's age is, as such a party would only seem to make sense during a monumental birthday like their 18th or 21st, the latter only making sense in the United States.

A staple in most children's cartoons and kid-friendly sitcoms is the Ageless Birthday Episode. This is an episode that centers on a specific character's birthday but never mentions the character's new age. If this character's actual age is part of the show's status quo, then [[StatusQuoIsGod you can expect their age to remain the same even after the "birthday episode."]] The inevitable [[TwentyFourHourPartyPeople numerous guests and fancy decorations]] at their birthday party raise even more curiosity as to what this character's age is, as such a party would only seem to make sense during a monumental birthday like their 18th or 21st.

This trope occurs most often in children's cartoons and more kid-friendly sitcoms, and goes hand-in-hand with NotAllowedToGrowUp. This is most likely because, well, [[FridgeBrilliance kids love birthday parties, and they associate it more with parties, fun and presents than turning a year older.]] This allows them to use it even though characters can't show actual signs of aging. However, it also frequently appears in more adult works, where it is decidedly less justified. If the only evidence of the character's age is what he says in casual conversation, it could be due to the character lying about his or her age, simply because an older age (the character's true age) is seen as less desirable than a younger one.

* ''Anime/{{Pokemon}}'':

* In the ''Series/StarTrekTheNextGeneration'' episode "Parallels," the ''Enterprise'' crew throws Worf a surprise party for his birthday. Captain Picard asks Worf how old he is, to which Worf answers [[MathematiciansAnswer "Old enough."]]

* The prologue of ''VideoGame/TheLastOfUs'' takes place on Joel's birthday. His age is never given, but his I.D. in the ''Part I'' remake says he was born in 1981, making him 32 at the time of the Cordyceps Brain Infection outbreak in 2013, and around 51-52 following the time skip.

* The prologue of ''VideoGame/TheLastOfUs'' takes place on Joel's birthday. His age is never given, but his I.D. in the ''Part I'' remake says he was born in 1981, making him 32 at the time of the outbreak in 2013, and around 51-52 following the time skip.

* The prologue of ''VideoGame/TheLastOfUs'' takes place on Joel's birthday. His age is never given, but his I.D. in the ''Part I'' remake says he was born in 1981, making him 32 at the time, and around 51-52 following the time skip.

* The prologue of ''VideoGame/TheLastOfUs'' takes place on Joel's birthday. His age is never given, but judging by his appearance, he looks to be in his late twenties to early thirties, which would place him in his late forties to early fifties in the main story.

* Lampshaded in ''VideoGame/AnimalCrossing''. When the villagers have their birthdays, they don't mention how old they're turning. But if you chat up a Snooty or Sisterly villager enough, your character will actually ask them that (well, at least [[TheSilentBob the way]] [[HeroicMime Heroic Mimes]] [[RepeatingSoTheAudienceCanHear do]]), and they'll respond by saying it's rude to ask a lady her age. It's also lampshaded when a party guest mentions they don't actually know what birthday they're celebrating.

* The prologue of ''Videogame/TheLastOfUs'' takes place on Joel's birthday. His age is never given, but judging by his appearance, he looks to be in his late-twenties to early-thirties, which would place him in his late-forties to early-fifties in the main story.

* VideoGame/SonicTheHedgehog celebrates his birthday in his MilestoneCelebration-game ''VideoGame/SonicGenerations''. However, there are no candles/banners to indicate his age, and WordOfGod has indicated that Sonic is still fifteen.

* None shown on screen, but when ''Manga/OnePiece'' creator Creator/EiichiroOda was asked about the possibility of the characters aging, he said that they do have birthdays, they just turn the same age every year. ("Lucky bastards.") [[spoiler: They all do end up aging after a two year time skip.]]
* TheMovie for ''Anime/YesPrettyCure5GoGo'' focuses on Nozomi's birthday, but she's never explicitly given an age (she started off ''Anime/YesPrettyCure5'' as 14, but ComicBookTime was invoked soon after).

* ''Manga/{{Doraemon}}'': Sue's age is never mentioned in "Worst Birthday Ever."

* "Good Evening, Midnight", a story in the ''ComicBook/BatmanBlackAndWhite'' anthology series, is implied to be set on Bruce Wayne's birthday; Alfred sets out a cake with a candle, and reminsces about the day Bruce turned three. The cake only has one candle, so it doesn't show Bruce's age, and there are no other indications either.

* Similarly averted in ComicBook/TheBeano, and often [[LampshadeHanging lampshaded]]. Dennis has had various birthdays (usually when the character hits a major anniversary) but he's always ten. When he turned 70 in reality, he complained that he thought he was ten ''last'' year, but his mum told him not to be silly. (Most characters with their own strip are also ten, but the Bash Street Kids are always nine.)
** As late as the early 2000s, however, Dennis had a VagueAge and was drawn looking any age from six to thirteen by different artists, so birthdays then ''were'' ageless.
* Initially averted in ''ComicBook/SonicTheHedgehogArchieComics'' when one issue has him celebrating his 16th birthday. When another issue has him celebrating a birthday, Rotor questions if he should be 16 or 17 (thanks to adventures in space, Mobius went through a year of changes while Sonic didn't age at all). Sonic replies he should be 16 forever and ever, thus invoking this trope should another birthday issue come up.

* In ''Literature/NintendoAdventureBooks'' #5, ''Pipe Down'', Princess Peach (who was named Princess Toadstool at the time) was celebrating her 99th birthday (in fungus years).

* By contrast, while the fourth ''Literature/{{Jennings}}'' book, ''Jennings and Darbishire'', features a birthday with no age mentioned, it is clearly Jennings' eleventh, because he was mentioned as "nearly eleven" in the previous book.
* In the ''Literature/RainbowMagic'' series, books with birthdays in them never reveal how old the birthday person is.

* ''Literature/DiaryOfAWimpyKid: Dog Days'': Greg celebrates his birthday, although his age is never stated.

* ''Series/OurMissBrooks'' has the episode ''The Birthday Bag''. Mr. Conklin asks Miss Brooks how old she is. Miss Brooks quickly dodges the question by starting a chorus of ''Happy Birthday''.

* ''Series/{{Friends}}'' had several ageless birthday episodes for Rachel. Averted, though, in the episode where Rachel has her 30th.
* ''Series/SavedByTheBell'' inexcusably did this with Screech's and Zack's birthdays. Since they're both in high school, there was no reason for them to not at least provide their new ages (which would've been anywhere from 15 to 18).

* ''Series/{{Frasier}}'': All the main characters, bar Niles, celebrate at least one on-screen birthday, but the only time a character's age is mentioned during these episodes is when Martin turns 65 in Season 5.
* ''Series/RedDwarf'': "M-Corp" opens with Lister celebrating his birthday. However, the only clue we get of his age is that it's (probably) somewhere over 40.
* ''Series/{{CSINY}}': Mac Taylor celebrates his birthday at the opera with then-girlfriend Peyton Driscoll in season 3. They share a cupcake from a vending machine later after he get called back in to work, but his age is never revealed.

* ''VideoGame/NewSuperMarioBrosWii'' begins with the OpeningNarration, "Today is Princess Peach's birthday!" After the opening cutscene, birthdays become irrelevant for the rest of the game.
* ''VideoGame/DonkeyKongCountryTropicalFreeze'' starts with one for DK, before the bad guys crash the party.
* VideoGame/SonicTheHedgehog celebrates his birthday in his MilestoneCelebration-game ''VideoGame/SonicGenerations''. However, there are no candles/banners to indicate his age, and WordOfGod has indicated that Sonic is still fifteen.

* One of the Additional Cases in ''VideoGame/CriminalCaseCityOfRomance'' has the High Commissioner ask his old friend, who owns a circus, throw a private performance to celebrate his son's birthday. Despite this being one of the very few birthday celebration to be shown on-screen, Gauthier is pretty much the only character (other than the Player Character) to not have his age revealed.

** The short "Gifts, Goofs, Galore" features Barbie and her friends celebrating her birthday. However, the friends realize that since Barbie never ages, as dolls never do, they don't know how old she is. Ken eventually asks her, but [[TheUnreveal the vacuum drowns out her answer.]]

* Webcomic/{{Precocious}} has a weird variant. Most characters have a canonically established age, but NotAllowedToGrowUp is in effect, so every time one of them has a birthday, they somehow go from 10 years old to 10 years old (or whatever age applies to the specific character). Naturally, they don't mention the actual numbers during the story.

* ''WesternAnimation/{{Rugrats}}'':
** Played completely straight with the episode "Angelica's Birthday." In an earlier episode ("The Seven Voyages of Cynthia"), Angelica mentions having gotten her doll Cynthia as a present for her 3rd birthday, so logically the birthday we see her celebrate should be her 4th, but in a later episode ("Pickles vs. Pickles"), her parents say that she's still 3 years old.
** Averted, though, in the aptly titled "Tommy's First Birthday." This was the series' first episode, so there wasn't any status quo to disrupt yet.
* Played similarly straight in the Nickelodeon ''WesternAnimation/{{Doug}}'' episode "Doug's Birthday Present." To the extent that the Disney series opened with an episode about him turning 12. Since he was 11½ when he moved to Bluffington and lived there during the Nickelodeon birthday episode, the only logical conclusion one could draw is that he had ''two'' 12th birthdays! It's even stranger. The aforementioned "Doug's Birthday Present" is a Season 4 episode -- the Season 2 episode "Doug vs. the Klotzoid Zombies" ends with Doug and his friends celebrating the 1st anniversary of him moving to Bluffington, and yet Season 3's "Doug's New Teacher" still says he's 11½!
* ''WesternAnimation/HeyArnold'':
** In "Eugene's Birthday", Arnold tries to throw Eugene a surprise birthday party, (with unsuccessful results) but never mentions Eugene's new age.
** Same thing with Helga. In "April Fool's Day", Arnold gives her a gag present claiming it's a week-late birthday present, but never mentions how old she is now. Since she was nine beforehand, this was likely her tenth birthday.
** ZigZagged during "Grandpa's Birthday". Phil turns 81, and it's a major part of the episode's plot, but after that episode his age is never brought up again.
* ''WesternAnimation/SouthPark'':
** The episode "Damien" does this with Cartman's birthday (although we can probably assume that he turned 9 in this episode, as the show subtly suggests that he's a little older than the three other SP boys).
** Averted in "You're Getting Old", which opened with Stan celebrating his 10th birthday.
* ''WesternAnimation/TheFlintstones'' had several such episodes for Fred (such as "The Swimming Pool"). Averted in the episode where Pebbles has her first birthday.
* [[LampshadeHanging Lampshaded]] in an episode of ''Literature/TheMagicSchoolBus''. It's Ms. Frizzle's birthday and the class goes to a bakery. During the AndKnowingIsHalfTheBattle segment at the end, a kid goes there and tells the baker shown in the episode that one critical piece of information was missing from the show: They never said how old Ms. Frizzle is.

* ''WesternAnimation/TheSimpsons'':
** Lisa has had a number of these but remains 8. Averted in "Stark Raving Dad", when she officially turns 8, and in "Treehouse of Horror XXXII" where she turns 9 (although this episode is non-canon).
** In "Radio Bart" Bart has a birthday, and almost states his age, but is cut off by an animatronic band beginning to play "Happy Birthday". "Treehouse of Horror III" has him celebrate a birthday, but no age is given.
** Maggie turns 1 in "Lady Bouvier's Lover", yet has another (ageless) birthday in "Moe Baby Blues" and is still 1.
* ''WesternAnimation/{{SpongeBob SquarePants}}'':
** In the episode "[=SpongeBob=] Meets the Strangler", [=SpongeBob=] celebrates his birthday among several other parties he planned on the same day. Even though he has a revealed birthday, his age isn't revealed.
** Another episode ("Pet Sitter Pat") when [=SpongeBob=] was invited to his grandmother's birthday. All was said about her age was "turning...even older".
** Yet another episode, "[=SpongeBob=]'s Big Birthday Blowout," created for the [[MilestoneCelebration 20th anniversary of the series]], takes place on [=SpongeBob=]'s Birthday yet again. The episode ends with Patrick asking him how old he really is, to which [=SpongeBob=] responds, "Well, as of today, I am—" only for the episode to end right as he's about to say it. However, according to [=SpongeBob=]'s driver's license, he was born on July 14, 1986, putting his age at 33 by the time of the episode.
* ''WesternAnimation/MyLittlePonyFriendshipIsMagic'':
** The episode "[[Recap/MyLittlePonyFriendshipIsMagicS2E9SweetAndElite Sweet and Elite]]" centers on Twilight Sparkle's birthday among other things, though her age is never revealed.
** Likewise, Pinkie Pie's age on her birthday is never revealed in "[[Recap/MyLittlePonyFriendshipIsMagicS1E25PartyOfOne Party of One]]" and Spike's age is never revealed in "[[Recap/MyLittlePonyFriendshipIsMagicS2E10SecretOfMyExcess Secret of My Excess]]."
** Rainbow Dash's new age is also not revealed on her birthday in "[[Recap/MyLittlePonyFriendshipIsMagicS4E12PinkiePride Pinkie Pride]]."
** Sweetie Belle's fifth birthday was an important plot point in "[[Recap/MyLittlePonyFriendshipIsMagicS4E20ForWhomTheSweetieBelleToils For Whom The Sweetie Belle Toils]]," but it took place in the past.
* ''WesternAnimation/MyLittlePonyTales'' averts this in "[[Recap/MyLittlePonyTalesS1E21HappyBirthdaySweetheart Happy Birthday, Sweetheart]]", where Sweetheart’s birthday cake has candles shaped as a 10, and the song number explicitly mentions “your tenth year”.
* A "U.S. Acres" segment on ''WesternAnimation/GarfieldAndFriends'' had this for Roy.

* ''WesternAnimation/YogiBear'' had two such episodes: one for Ranger Smith and one for Yogi.
** ''The New Yogi Bear Show'' had another one for Yogi.
* ''WesternAnimation/PhineasAndFerb'': the episode "Phineas' Birthday Clip-O-Rama" centers around Phineas' birthday, but his age remains a mystery (all we know is that despite aging a year he is still "younger than 15").
* In ''WesternAnimation/TeenTitans'', the main arc of season 4 sets off with Raven's birthday. We're never actually told how old Raven is, but most of fandom assumes it was her 16th birthday because of the DangerousSixteenthBirthday trope.
* Subverted with ''WesternAnimation/PeppaPig'', where with Mummy Pig's birthday, Daddy Pig whispers her age to Peppa, who comments that it's old. Daddy Pig just puts a couple of candles on the cake.
* Played with in ''WesternAnimation/MagicAdventuresOfMumfie'': Scarecrow celebrates his first birthday in "Scarecrow's Birthday Surprise" (Mumfie states this in a later episode), and The Queen of Night has an ageless one in "It Won't Be Alright On The Night".
* ''WesternAnimation/TimeSquad'':
** Otto has a birthday early on in the second season, but it's never established that he's eight years old until he mentions his age in a much later episode.
** Played totally forward with Larry 3000 when he wanted Tuddrussel to notice that it was his birthday, but it's kept pretty vague to how exactly old the robot is.
* ''WesternAnimation/BluesClues'':
** One episode is about Blue's birthday. It's presumably her first birthday but it's never referred to as such and [[NotAllowedToGrowUp she is still called a "puppy"]] in future episodes.
** Averted in an episode about Mailbox's birthday, in which Steve says he's turning ten.

* In the ''WesternAnimation/ReadyJetGo'' episode "Mindy's Moon Bounce House", Mindy has her birthday, but it was never specified what age she became. Averted in "Mindy Turns Five" when [[ExactlyWhatItSaysOnTheTin she celebrates her fifth birthday]] and can finally go into space with Jet, Sean and Sydney.
* ''WesternAnimation/PJMasks'': The episode "Catboy and the Great Birthday Cake Rescue" focusses on Greg's birthday, but his age is never mentioned. According to the character's bio, they are 6 years old, but it's unknown if Greg was 5 before and turned 6 now, or if he was 6 before and thus should be 7 now (and by extend, the others as well since he's stated to be the youngest).

* ''WesternAnimation/DanielTigersNeighborhood'':
** Since the characters are NotAllowedToGrowUp, there were ''two'' birthday episodes for Prince Wednesday, without his age being given.
** It's Margaret's birthday with no specific age given in "Margaret's Birthday Buddy / Margaret's Birthday Party," since Margaret was allowed to grow up just enough to make her a sibling for Daniel who could actually play and talk a bit.[[note]]She was ''born'' in a previous installment, then aged up to toddler status shortly afterward.[[/note]]
* In one episode of ''WesternAnimation/ThePowerpuffGirls1998'' the girls have a birthday, but they're still referred to as five year olds in future episodes.
* This is combined with VagueAge in the ''WesternAnimation/OKKOLetsBeHeroes'' episode "Plaza Alone", in which K.O. has his 6-11th birthday party. This is the same age range he was at the start of the series and [[NotAllowedToGrowUp would have celebrated for any future birthdays]] if the series went on long enough (not counting the DistantFinale).
* A recurring gag in ''WesternAnimation/{{Arthur}}'' is that Prunella celebrates her half-birthday in addition to her birthday, allowing the show to have three separate episodes centered around a "birthday celebration" for her, prompting one character to ask if she had a birthday six months ago, only to be corrected that this celebration is either her half-birthday or her real birthday and this one was the other birthday celebration. That said, Prunella is a grade ahead of the core cast, who are all in the third grade and mostly are said to be 8 years old, making Prunella 9 years old, 9 1/2 years old, or 8 1/2 years old, depending on the episodes timeline, justifying this trope.

* Subtly subverted in ''WesternAnimation/CodenameKidsNextDoor'': [[EnfantTerrible The Delightful Children from Down the Lane]] have a birthday party OnceASeason, ultimately holding six, without anyone visibly aging. However, it's briefly mentioned that, despite [[TheDividual the five of them acting in complete unison]] and celebrating collectively, there's a separate party for each's birthday every year. So only one year passes between the first and last. [[DoubleSubversion That said, no one is mentioned to have even aged a year in that time frame.]]
* ''WesternAnimation/HarveyStreetKids'': In the season 3 finale "Days of Future Presents", Richie Rich invokes this trope when he allows the Harvey Girls to throw him a birthday party. He claims nobody likes an old child millionaire, so if anyone asks about his age they have to say that Richie is "over 8".
** Somehow, in that episode, the girls had their best birthdays mentioned, with Dot's having HappyBirthdayToYou playing instrumentally.
** The episode "I Wanna Crush Your Hand" had this too, as with a flashback to Lucretia's, but it is unknown how old she is as well.
* On ''WesternAnimation/TheFairlyOddParents'', Timmy celebrates three birthdays throughout the series, yet never ages beyond ten years old. Of course, we find out [[spoiler: he literally wished for a FloatingTimeline and fifty years pass in series.]]
* ''WesternAnimation/BatmanBeyond'': The episode "Out of the Past" takes place on Bruce Wayne's birthday, but his age is never stated outright. Conflicting sources claim he was either in his seventies or eighties during the show's run.
* ''WesternAnimation/JackieChanAdventures'': Jade and Uncle both have these. Uncle's is in "The Dog and Piggy Show" while Jade's isn't until a much later episode called "Black and White and Chi All Over", although in the former, it is stated that Uncle was born in the year of the dog. Since Uncle appears to be in his 60s or 70s at the time the show started (2000), this would mean he was most likely born in either 1922 or 1934.
* Averted and played straight in ''WesternAnimation/FamilyGuy'':
** Meg turned 17 in "Peter's Two Dads" and 18 in "Quagmire and Meg", but has also had a couple of other birthdays without her age being mentioned.
** Chris had a birthday in "Follow the Money" but his age was not mentioned. He has however aged from 13 to 14 during the course of the series.
** Stewie turned 1 in "Chitty Chitty Death Bang".
** Peter has had two ageless birthday episodes, but his age has been said in other episodes to be 42 and 43, suggesting those birthdays could be his 42nd, 43rd or 44th.
** Lois turns 43 in "Lois Comes Out of Her Shell" but has also had a couple of other birthdays without an age being mentioned in "Stewie Kills Lois" and "Regarding Carter".
** Averted in "Cootie and the Blowhard" where Brian has a birthday and at the end, he reveals that he is now 10 years old, which is 70 in dog years.

* Played with in ''WesternAnimation/CampLazlo''. The second half of the episode "Movie Night" is a birthday episode for Edward. Edward's age is never directly stated, but he cannot see the horror movie until his birthday rolls around because [[KidsShouldntWatchHorrorFilms he is too young.]]