June 26

Television[]

1999: Nickelodeon celebrates its 20th anniversary (almost three months late) with an all-day birthday marathon featuring select episodes from the channel's history. This marathon notably marked the last time the original Double Dare, Nickelodeon GUTS, and Roundhouse have aired on the main Nickelodeon network.

Year	Show	Episode(s)
1992	Salute Your Shorts	"Goodbye Michael, Hello Pinsky"
1993	Clarissa Explains It All	"Hero Worship"
	Roundhouse	"Environment"
	Are You Afraid of the Dark?	"The Tale of the Midnight Madness"
2009	The Penguins of Madagascar	"Mort Unbound" / "Roomies"
2010	iCarly	"iBeat the Heat" (season finale)
	Big Time Rush	"Big Time Fever"
	Victorious	"Survival of the Hottest"
	True Jackson, VP	"Heatwave"
2015	Fresh Beat Band of Spies	"Werewolf Hairwolf"
2018	The Loud House	"Pasture Bedtime" / "Shop Girl"
2018	Blaze and the Monster Machines	"The Super-Size Prize"
2023	SpongeBob SquarePants	"Mandatory Music"