History Series / SesameStreet

* {{Scandalgate}}: A crossover between ''Sesame Street'' and ''The [=MacNeil=]-Lehrer News Hour'' occurred during a PBS pledge drive in the '80s in which Robert [=MacNeil=] covered a presumed cookie theft by Cookie Monster known as "Cookiegate."

** One cartoon featuring a salesman trying to sell the letter Z has the salesman give examples of words beginning with Z, including "Zither." He then pulls out a zither and starts playing the theme from Film/TheThirdMan.

** Snuffy gets a tummyache in one episode.

** The season premieres are usually the only episodes of the whole season to feature ''all'' of the human actors on the show, because they can't afford to do so more often than that. Often, this was used to showcase new and returning actors and establish personalities. [[note]]A prime example is the fifth-season premiere, aired in November 1973, where a "typical day on Sesame Street is shown, with not only the either human cast but every one of the Muppet characters as well.[[/note]]

* PreciousPuppy: The 2021 HBO Max exclusive animated special ''Furry Friends Forever: Elmo Gets a Puppy'' involves Elmo and Grover befriending a female stray puppy named "Tango". Throughout the special, they try taking her to Sesame Street's pet adoption event held at the park. However, Elmo and Grover missed the event which causes [[https://media.npr.org/assets/img/2021/07/06/credit-sesame-workshop-2-_wide-a5275f51adc6bae236e7ff5a32a0329a9cb5d787-s800-c85.webp Elmo to fully adopt Tango and become his second pet]]. She will eventually show up on PBS KIDS streaming programs starting in 2022 and future episodes of the series.

* AnAesop: Many episodes are meant to teach morals to little kids, such as "Don't Get Pushy" which is meant to teach against physical violence.

* MyNaymeIs: '''Herry''' Monster, '''Merry''' Monster.

* PantomimeAnimal: Barkley wss portrayed by a performer who crouched down on all fours and crawled while wearing the Barkley mask like a helmet.

** ''A Baby Sister For Herry'' is a book based on the show. When Herry's baby sister, Flossie is born, Herry becomes jealous of the attention she receives from his friends and relatives. Herry also dislikes when his parents have to remind him to be considerate of her, such as not playing with his toy fire engine outside her bedroom so she can sleep. Herry later decides to act like a baby so his parents will give him some attention, and when his mom finds out, she shows him pictures of what he looked like when he was a baby. This makes Herry realize that [[NotSoDifferent he used to be like Flossie]], so he changes his attitude and helps take care of her.

** Herry Monster debuted in Season 2 as a [[SuspiciouslySimilarSubstitute loose replacement]] for The Beautiful Day Monster and shown a few traits that were not so less abrasive than his predecessor's. Many earlier sketches from Season 2 would depict him with slight aggression even deliberately trying to scare other characters albeit as a "harmless" prank. Several seasons later as the character would mature and mellow a little, Herry would now be known as one of the [[GentleGiant most gentle and affable]] monsters on the show, albeit one who DoesNotKnowHisOwnStrength.

** Beginning in Season 2 (1970-1971) and continuing until Season 51 (2020-2021), Caroll Spinney received this billing for Big Bird and Oscar the Grouch, since they are (or once were) considered to be the most important Muppet characters on the show, having been conceived specifically for interaction with the live actors on the street.

** SleepingSingle: An isolated case comes up in a season 42 episode, where Bert and Ernie get flooded out of their apartment and end up sharing Gordon and Susan's bed; the only other beds around are Bert and Ernie's, which are on opposite sides of the room. Gordon has to curl up into the fetal position just to try to fit in Ernie's bed.

* SpaceWhaleEpisode:

* NostalgiaFilter: Arguably, what some adult fans who object to the modern {{Retool}} are looking through.

** In episode 555, Big Bird makes plans for his friends to see Mr. Snuffleupagus by getting them to agree to show up whenever Big Bird shouts "Snuffleupagus!" When Snuffy does show up and Big Bird shouts it, nobody comes, as he had "cried Snuffleupagus" too many times. Similarly, in episode 2096, the adults agree to run over when Big Bird shouts a secret word, at one point doing it just as practice, and while they tell Big Bird not to do any more practice, when Snuffy shows up and Big Bird yells the secret word, the adults all hesitate [[spoiler:Although they all do decide to see that Snuffy is real, and this time they finally do.]]

** When Alania Reed hall joined the cast of ''series/TwoTwoSeven'', Olivia made sporatic appearances on ''Sesame Street'' for a few more years before she completley left the show, as 227 was shot in Los Angeles while ''Sesame Street'' is shot in New York.

** When Alania Reed hall joined the cast of ''series/{{TwoTwoSeven}}'', Olivia made sporatic appearances on ''Sesame Street'' for a few more years before she completley left the show, as 227 was shot in Los Angeles while ''Sesame Street'' is shot in New York.

** When Alania Reed hall joined the cast of ''series/{{227}}'', Olivia made sporatic appearances on ''Sesame Street'' for a few more years before she completley left the show, as 227 was shot in Los Angeles while ''Sesame Street'' is shot in New York.

** In Sam the Robot's debut, Susan asks Sam if it's unusual to be meeting [[MakesAsMuchSenseInContext a cement mixer for lunch]], Sam agrees - usually, they meet for dinner.

** Biff and Sully, a pair of construction workers, were removed from the show for unknown reasons.

** The celebrity expanded version of ''Monster in the Mirror'' ends with a cameo from WesternAnimation/TheSimpsons, a show for an audeince ''far'' more adult that that of Sesame Street.

** The Star Wars episode that feature appearances by C3PO and R2D2. Even though ''Star Wars'' is a family franchise, the violent fight scenes make it appropriate only for children older then 7.