October 21

==Television==
* 2022: Middlemost Post airs for the last time on Nickelodeon.
===Episode premieres===
Year	Show 	Episode(s)
1995	The Secret World of Alex Mack 	"New Kid in Town"
1995	All That 	"Malcolm-Jamal Warner/Mokenstef"
1995	The Ren & Stimpy Show 	"Bell Hops" / "Dog Tags"
1995	Are You Afraid of the Dark? 	"The Tale of the Jagged Sign"
1998	CatDog 	"Nightmare" / "CatDogPig"
2000	SpongeBob SquarePants 	"Hooky" / "Mermaid Man and Barnacle Boy II" (Canada)
2002	Blue's Clues 	"A Brand New Game"
2005	SpongeBob SquarePants 	"Patrick SmartPants"
2005	Avatar: The Last Airbender 	"The Deserter"
2008	Yo Gabba Gabba! 	"Differences"
2010	Team Umizoomi 	"Chicks in the City"
2011	SpongeBob SquarePants 	"Ghoul Fools"
2012	SpongeBob SquarePants 	
* "Move It or Lose It" 
* "Chum Fricassee"
2014	Blaze and the Monster Machines	"Tool Duel"
2015	Wits Academy 	"Bizarro Ruby"
2015	The Thundermans 	"Floral Support"
2015	Bella and the Bulldogs 	"Rally Week"
2016	Bubble Guppies 	"Trick or Treat, Mr Grumpfish!"
2017	SpongeBob SquarePants 	"Teacher's Pests" / "Krabby Patty Creature Feature"
2017	Henry Danger 	"Sick & Wired"
2017	Game Shakers 	"Spy Games"
2018	SpongeBob SquarePants 	"The Night Patty" / "The Grill is Gone"
2018	Sunny Day 	"Timmy Big Day"
2021	Santiago of the Seas 	"The Mysterious Island" / "Mystery of the Vam-Pirates"
2021	Tyler Perry's Young Dylan 	"Haunted Halls"
2021	That Girl Lay Lay 	"Ha-Lay-Lay-Ween"
2022	PAW Patrol 	"Pups Stop the Return of Humsquatch" / "Pups Save a Lonely Ghost"
2022	The Tiny Chef Show 	"Ants on a Log" / "Quesadillas"
2022	The Loud House 	"Great Lakes Freakout!"
2022	Big Nate 	"Valentine's Day of Horror"
2022	The Smurfs 	"No Smurf Out!" / "Souffle Shuffle"
2022	Middlemost Post 	"More Scary Stories to Tell Your Cloud" (series finale)
2024	Monster High 	"The Monster Fest"
==Home video==
* 1997:
** Hey Arnold!: Arnold's Christmas VHS
** Rocko's Modern Life: Rocko's Modern Christmas VHS (Paramount re-issue)
** Rugrats: Bedtime Bash VHS
** A Rugrats Chanukah VHS
** A Rugrats Thanksgiving VHS
** Allegra's Window: Adventures From Hummingbird Alley VHS
** Gullah Gullah Island: Adventures with Binyah Binyah VHS
== Video games ==
*2004: Nicktoons Movin'
*2005: SpongeBob SquarePants: Lights, Camera, Pants! (PS2 & Xbox)
==Comics==
* 2015: Invader Zim #4
==People==
===Births===
* 1980: Kim Kardashian
* 1988: Katie Bartlett
October 21