The first episodes of many Henson series are treated like regular episodes, that could easily air later in the show's run without confusion, as opposed to episodes that properly introduce the format of the series. This list is for shows that began with introduction episodes setting the premise or backstory of the series, as well as episodes that mark a proper introduction for a character's debut.
Series that began with introductory episodes
- Sesame Street - Episode 0001
- Fraggle Rock - "Beginnings"
- Little Muppet Monsters - "In the Beginning"
- Dinosaurs - "The Mighty Megalosaurus
- Muppets Tonight - Episode 101: Michelle Pfeiffer
- Farscape - "Premiere"
Episodes that introduce characters
A listing of episodes of shows that properly introduce characters to the cast. This is not a list of first appearances. Some characters who had introduction episodes actually did appear on their respective shows before their introduction episodes. This list does not include flashback sequences or one-shot characters.
- Episode 0276 - Mr. Snuffleupagus, Maria, and Luis are introduced.
- Episode 1257 - Telly Monster is introduced.
- Episode 2888 - Rosita is introduced.
- Episode 2909 - Baby Bear and Goldilocks are introduced.
- Episode 4055 - Curly Bear is born.
- Episode 4109 - Abby Cadabby is introduced.
- Episode 106: Jim Nabors - Scooter is introduced (after having been in three previous episodes).
- Episode 121: Twiggy - Uncle Deadly is introduced (after having appeared in an earlier episode).
- Episode 302: Leo Sayer - Annie Sue is introduced (after making frequent background appearances in season two and being referred to by name in the previous episode).
- Episode 310: Marisa Berenson - Lew Zealand is introduced.
- Episode 118: The Minstrels - Cantus and The Minstrels are introduced.
- Episode 208: All Work and All Play - Cotterpin Doozer is introduced.
- Episode 202: Springer Fever - Introduces Terri Springer
- Episode 301: The New Litter - Introduces new animated characters Yves, Steven, and Dot
- Episode 102: Garth Brooks - Bill the Bubble Guy is introduced.
- Episode 210: The Gary Cahuenga Episode - Gary Cahuenga is introduced (though he'd been seen earlier in the season)