3 Hour Marathon!

3 Hour Marathon! was an event airing a two-hour marathon of SpongeBob SquarePants episodes from Season 1 that occurred on October 2, 1999 from 10:00am to 12:00pm.

New episodes

• MuscleBob BuffPants (10:00am)
• Squidward the Unfriendly Ghost (10:15am)

Rerun episodes

• Mermaid Man and Barnacle Boy (10:30am)
• Pickles (10:45am)

Trivia

• This event was the first time SpongeBob SquarePants aired on Nickelodeon the whole 10am hour; however, that wasn't put to permanent use until May 28, 2000.
• Even though the marathon was intended to be 3 hours long, it was cut to 2 hours.
• "MuscleBob BuffPants" and "Squidward the Unfriendly Ghost" were originally going to premiere on September 25, but were moved to this event; a repeat of "Culture Shock" and "F.U.N." aired instead that day.
• The Chaperone and Employee of the Month were originally going to premiere as part of this event, but due to the marathon cutting short to two hours, they were moved to March 8, 2000, when they premiered as part of March Toon Mania.

TV Specials, Shorts, Marathons and Events

Nick Saturdays (1999-2004; 2007; 2010-2012; 2016; 2019; 2020; 2025) • Nick Fridays (1999; 2000; 2001-2006; 2011; 2015; 2021-) • 3 Hour Marathon! (1999) • March Toon Mania (2000) • 2000 Kids' Choice Awards Short (2000) • Astrology with Squidward (2000-2001) • SpongeBob’s Nicktoons Summer Splash (2000-2001) • SpongeBob’s Gold Medal Dive-a-Thon (2000) • Daily U-Pick (2000-2002) • Nicktoons Afternoon Snack Packs (2000) • Nicktoons Got Game-a-Thon (2001) • Mighty Girls of Nick (2001) • Presidents' Day Celebration (2001) • SpongeBob’s You Wish Spectacular Special (2001) • Toonsday Afternoon Marathon (2001) • Spine-Tingling, Teeth-Chattering, Hair-Raising, Spooktastic Nicktoon Boo-Fest (2001) • SpongeBob-a-Thon (2002) • Friday Night Party with the Nicktoons (2002) • Nicktoons Battle (2002) • 12 Days of Nickmas (2002) • Plankton’s Holiday Hits (2002) • Patrick the Snowman (2002) • Nickelodeon Holiday Party (2002) • How the You-Know-Who Stole the You-Know-What (2002) • Nicktoons Studios Rules (2003) • Plankton’s Revenge (2004) • Plankton’s Plan (2004) • The Endless Summer (2005) • Your Brain on SpongeBob (2005) • Random Acts of SpongeBob (2006) • SpongeBob Extras (2006) • The Best Day Ever Marathon (2006) • Super Stuffed Nicksgiving Weekend (2006-2011) • Patrick for President (2007) • Foe-Gotten Years (2007) • NEW NEW NEW NEW NEW Week (2007) • The Top 100 Moments In Nicktoons History (2007) • Journey to Atlantis (2007) • SpongeBob Z-A (2007) • Gimme 5 (2008) • SpongeBob Premiere Factor 5 (2008) • Bikini Bottom Confidential (2008) • Nick’s Nonstop Five at Five (2008) • Spectacular! Presidents' Day Weekend (2009) • SpongeBob Triple Play (2009) • The Big Green Help Shorts (2009) • Bob Squad (2009) • Deep Sea Danger Zone (2009) • The Ultimate SpongeBob SpongeBash (2009) • SpongeBob Surf Shorts (2009) • Square Roots: The Story of SpongeBob SquarePants (2009) • Truth or Square Shorts (2009) • Back to the Past Shorts (2010) • Unnamed March 2010 Premiere Week (2010) • SpongeBob’s Last Stand Shorts (2010) • Clash of the Triton (2010) • The Clash of Triton Shorts (2010) • Gumshoe SquarePants (2010) • Legends of Bikini Bottom (2011) • Legends of Bikini Bottom Shorts (2011) • SpongeBob’s Runaway Roatrip (2011) • Sandy’s Vacation in Ruins (2011) • Two Whole Weeks of Never Before Seen SpongeBobs (2012) • Mermaid Man-a-Thon (2012) • The Super Spongy Square Games (2012) • Nick Sundays (2012; 2015; 2018; 2024) • SpongeBob’s Greatest Grilling Moments (2015-2021; 2023-) • Best of the Pets (2015-) • Krabby Patty Party (2017) • Frozen Krabby Patty Shorts (2017) • SpongeBob Gold (2017) • The Best of Patrick Star (2017) • You Bring the Color Week (2017) • SpongeBob’s Super Saturday Night (2021-) • SpongeBob’s Winter Wonderland (2021) • The Tidal Zone (2023) • The Best of Squidward (2023) • SpongeBob SportsPants (2023) • Best of Sandy Cheeks (2023) • Best of the Flying Dutchman (2023-) • SpongeBob SquarePants' Super Stuffed Thanksgiving (2023) • SpongeBob’s Super Bowl Party (2024) • Super Bowl LVIII: Live from Bikini Bottom (2024) • The Best of Mr. Krabs (2024) • 31 Nights of Frights (2024) • The Best of Pearl (2024) • 25 Days of Spongemas (2024) • The Best Krabby Patty Moments! (2024) • Beneath the Bun: Secrets of the Krabby Patty (2024) • Nickelodeon’s NFL Wild Card Game Live from Bikini Bottom (2025) • SpongeBob’s Summer of F.U.N. (2025)