General: boast busters
The eight episode of the first season of My Little Pony: Friendship is Magic.
A new unicorn has arrived in town, one who goes by "The Great And Powerful" Trixie, and claims to be the greatest pony in all of Equestria. It's up to the Mane Six to put her in her place, and teach her a lesson.
Wacky hijinks ensue...
More information can be found here.