Muppet Babies mentioning names of performers, employees, different productions, and other pieces of inside information.

Muppet Babies

Picture Description
Muppets Go Hollywood footage in Muppet Babies
In "What Do You Want to Be When You Grow Up?," footage of the red carpet crowd in The Muppets Go Hollywood is used as Baby Piggy and Baby Kermit imagine a famous lifestyle. The same footage re-appears in "Eight Flags Over the Nursery" as the babies ride through the Movie Studio section of Babyland.
In "Close Encounters of the Frog Kind," a brief shot from The Muppet Movie, of Kermit's legs exiting Bunsen's laboratory, is used during the Western scene between Baby Kermit and Baby Gonzo.
MB201 Henson and Frith St
In "Once Upon an Egg Timer," when Baby Skeeter as a police officer is chasing after Baby Piggy for taking Baby Rowlf's voice, she calls on the radio for a roadblock on Henson and Frith Street.
MB208 Danhurst College
As the curtain rises on Baby Piggy in "Musical Muppets," the college auditorium audience scene from the beginning of The Muppets Take Manhattan is used as a backdrop for the animated characters.
MB213 GMC
In "When You Wish Upon a Muppet", after Baby Kermit wishes that the Muppets stay together and make movies and TV shows when they grow up, a clip from The Great Muppet Caper is shown.
MB308 Oscar
In "The Daily Muppet," a clip featuring Oscar the Grouch is shown during the title song.
MB312 Skeksis
In "Fine Feathered Enemies" when Scooter and Skeeter get angry with each other and "divorce" each other from being siblings, they are told to become the siblings of two other people. They turn out to be two Skeksis from The Dark Crystal (SkekAyuk and SkekEkt), who flee from them. This shot was originally used in The Dark Crystal, when the two Skeksis scream in horror and run from Kira.
Incredible shrinking weirdo1
"The Incredible Shrinking Weirdo" features a scene where a live-action adult Kermit interacts with an animated Baby Gonzo. A clip from The Muppet Show (Episode 223: John Cleese) was used, with Frank Welker dubbing new lines for Kermit and with Baby Gonzo matted into the scene. This fantasy sequence also featured a shot of the audience that was frequently used on The Muppet Show.
Babypiggy-hollywood-tv

MB406-Marque
At the beginning of "This Little Piggy Went to Hollywood", the babies watch a TV special on Hollywood that showcased still photo of stars including Bert and Ernie, as well as a photo of Jim Henson.

Later in the episode, a marquee reads "Henson's Biggest Little Pig."
MB501 Dr Teeth
In "Muppets Not Included," a live-action Dr. Teeth appears as one of the hundreds of celebrities in Baby Piggy's game show, "Celebrity Circles."
MB-Cave
In "Junkyard Muppets," Baby Fozzie attempts to open a cave with the phrase "Open Sesame Street!"
MB513 Sesame Street diner
In "Bug-Busting Babies" the babies become bug exterminators and set out to recruit members for the team. Their first recruit is Kermit the Frog, who they find working at a diner off of Sesame Street.
MB615 Labyrinth
"Babes in Troyland," features clips from Labyrinth and The StoryTeller: Greek Myths. During the Minotaur's maze, scene clips include the Illusionary maze and the Labyrinth.
MB701 Muppets Clean Manhattan
In "Muppet Babies: The Next Generation", when the other babies think that Rowlf is playing charades, one of Piggy's guesses is "The Muppets Clean Manhattan".
MB702-Skeksies
In "Quoth the Weirdo," Gonzo and Bean encounter two Skeksis from The Dark Crystal.
MB704 Sesame Seed Boulevard
"Gonzee's Playhouse Channel" features a parody of Sesame Street, called "Sesame Seed Boulevard". Highlights include Kermit's attempts to teach viewers about the letter B, Fozzie in the role of "Big Joke", Animal appearing in a trashcan like Oscar the Grouch, and Kermit and Scooter using paper bags in the respective roles of Kert and Bernie.
Bigbirdmuppetbabies
In "Get Me to the Perch on Time," as Baby Kermit and Piggy fly in a plane, they pass Mount Rushmore, as seen in The Muppet Show: Sex and Violence, with dubbed dialog. Later, Gonzo and Fozzie are trying to find a missing penguin in the arctic. They decide to put his picture up on their blimp board, but Fozzie includes an image of Big Bird instead.
Muppetbabies-labyrinth
"Nice to Have Gnome You" features clips from both Labyrinth and The Witches. Several of the Babies appear as characters from Labyrinth, intercut with footage of the actual Creatures, including Baby Gonzo as Hoggle, Animal as Ludo, and Scooter as The Worm.

Merchandise

Picture Description
Masquerade ball
The storybook Baby Piggy's Night at the Ball features illustrated cameos of costumes from the Henson Company Masquerade Balls.
Robin-starchores
In the framing sequences of the home video Yes, I Can, Robin's bedroom features posters using photos and film parodies previously released as trading cards and at Muppet*Vision 3D ― including Star Chores, Krissed Krossed, The Bride of Froggen-Schwein, Beach Blanket Beaker, The Ricky Rat Show and Surfin' Like an Animal!. His cluttered closet also includes a Rubber Duckie.

Muppet Babies (2018)

Picture Description
MuppetBabies2018-Books
Several books on the shelves in the playroom feature photos of Beaker, Sam Eagle, Janice, Pepe, and the Swedish Chef on the spines.
MB2018-OtherBabies01
A picture on the wall of the playroom features Baby Scooter and Baby Skeeter playing on a seesaw.
Pictures hanging on the wall of Miss Nanny's house feature Baby Bunsen and Baby Beaker, as well as baby versions of other Muppet characters that hadn't appeared as younger versions of themselves before — including: Sweetums and Sam Eagle; Dr. Teeth, Zoot, Floyd Pepper and Janice; Lew Zealand and a fish; The Swedish Chef; Pepe the King Prawn; as well as Mahna Mahna and the Snowths. Baby Rowlf has yet to be spotted.
MB2018-MuppetShowArches
The babies and chicks appear in what resembles the Muppet Show arches in their Muppet Babies: Show and Tell short "The Great Muppet (Short) Musical".
MB18-SWYard
Mr. Statler and Waldorf's yard features sculptures of Big Mean Carl and Luncheon Counter Monster.
In "Hatastrophe," statues of Sweetums, Behemoth and Blue Frackle are seen in the babies' burglary fantasy.
SportAThon-Trophies
In "The Great Muppet Sport-A-Thon," the stadium features trophies topped with figures of Blue Frackle, Big Mean Carl, Thog and Sweetums.
MB104-InsideJoke
In "Piggy's Time Machine," the babies zip around space and time. At one point, they witness their future selves (using stock footage from "The Muppet Show Theme" in The Muppets), where Baby Fozzie asks who all those people are.
"Piggy's Time Machine" also includes various minor inside references such as Sam the Eagle on an Egyptian pot, Beaker's likeness in place of The Sphinx, and Muppet icons on The Nursery's Scribble Screen.
MuppetBabies-(2018)-S01E06-SamTiki
"Playground Pirates" includes a scene with a tiki head suspiciously resembling Sam the Eagle.