Prior to the premiere of this season was the final "Pony Palooza" marathon, which began on March 30, 2019 at 6:00 a.m., starting with all the Equestria Girls specials up to the premiere of the upcoming Equestria Girls special, Spring Breakdown, followed by most episodes of Season 3 and all of Seasons 4-8 of the TV series starting on March 31 at 6:00 a.m..
Discovery Family's "final" marathon of My Little Pony episodes lasted from October 6–12, 2019. This marathon included a featurette called "A Decade of Pony", episodes from all nine seasons including the premiere of the series finale, My Little Pony: Equestria Girls: Legend of Everfree, the episode-length special Mirror Magic, and hour-length specials Spring Breakdown and Sunset's Backstage Pass.
The final marathron aired from December 23–30, 2019, and comprised of episodes from Seasons 2–9, including the final three as standalone episodes.
|Episode title||First broadcast|
|The Beginning of the End, part 1||April 6, 2019|
|The Beginning of the End, part 2|
|Uprooted||April 13, 2019|
|Sparkle's Seven||April 20, 2019|
|The Point of No Return||April 27, 2019|
|Common Ground||May 4, 2019|
|She's All Yak||May 11, 2019|
|Frenemies||May 18, 2019|
|Sweet and Smoky||May 25, 2019|
|Going to Seed||June 1, 2019|
|Student Counsel||June 8, 2019|
|The Last Crusade||June 15, 2019|
|Between Dark and Dawn||June 22, 2019|
|Rainbow Roadtrip||June 29, 2019|
|The Last Laugh||August 3, 2019|
|2, 4, 6, Greaaat||August 10, 2019|
|A Trivial Pursuit||August 17, 2019|
|The Summer Sun Setback||August 24, 2019|
|She Talks to Angel||August 31, 2019|
|Dragon Dropped||September 7, 2019|
|A Horse Shoe-in||September 14, 2019|
|Daring Doubt||September 21, 2019|
|Growing Up is Hard to Do||September 28, 2019|
|The Big Mac Question||October 5, 2019|
|The Ending of the End, part 1||October 12, 2019|
|The Ending of the End, part 2|
|The Last Problem|
|Episodes they each appeared in|
|Episodes they each appeared in but didn't speak|
|Episodes they each did not appear in|
|Appearances in the same episode||Absences in the same episode|
The expiration of Shout! Factory's home video rights for My Little Pony in 2019 resulted in Season 9 getting a bootleg DVD boxset in Malaysia. The UPC is "DVD-TMC-128".
A behind-the-scenes look at the 200th episode (Twilight's Seven) was uploaded on April 19, 2019.
A 5-minute recap video was uploaded on October 10, 2019, the exact 9th anniversary of the show.
A documentary titled "A Decade of Pony" premiered on October 11, 2019 on Discovery Family.
In December 2019, four more songs got music videos on YouTube: Celestia's Ballad, Generosity, Find the Music in You, and Friends are Always There for You.