Newbie Dash, the seventh episode of Season Six was originally aired on May 7, 2016.

In this episode, when Rainbow Dash makes a bad first impression after joining the Wonderbolts, she is saddled with a mortifying nickname.

Fluttershy Leans In, the fifth episode of Season Seven was originally aired on May 6, 2017.

In this episode, Fluttershy tries to stand up for her ideas in order to realize her dream of building an animal sanctuary.

The Best Night Ever, the twenty sixth episode of Season One was originally aired on May 6, 2011.

In this episode, Twilight Sparkle and her friends attend the Grand Galloping Gala, but none of their experiences meet their expectations, much to their disappointment.

The Parent Map, the eighth episode of Season Eight was originally aired on May 5, 2018.

In this episode, the Cutie Map sends Starlight Glimmer and Sunburst to their hometown of Sire's Hollow to solve a friendship problem with their parents.

Common Ground, the sixth episode of Season Nine was originally aired on May 4, 2019.

In this episode, Quibble Pants asks Rainbow Dash for help to bond with the daughter of his new special somepony because, like Dash, she's a real sports pony.

Equestria Games, the sixth episode of Season Four was originally aired on May 3, 2014.

In this episode, Spike's nerves get the better of him when he is put in charge of lighting the Equestria Games torch.

It also features the song, Cloudsdale's Anthem, sung by a nervous Spike.

Appleoosa's[sic] Most Wanted, the sixth episode of Season Five was originally aired on May 2, 2015.

In this episode, the Cutie Mark Crusaders try to bring an infamous outlaw to justice in hopes of earning their cutie marks.

Let’s wish a very happy birthday to Vincent Tong!

No Second Prances, the sixth episode of Season Six was originally aired on April 30, 2016.

In this episode, when Starlight Glimmer becomes friends with Trixie, Twilight Sparkle disapproves.

Trivia

Rock Solid Friendship, the fourth episode of Season Seven was originally aired on April 29, 2017.

In this episode, Maud Pie considers moving to Ponyville after graduating from geology school, and Pinkie Pie tries to help her see that the town has more to offer than just rocks.