Nick's Shorts Showcase is a short-form program that airs Friday nights at 8:00 PM EST on Nickelodeon, starting May 28, 2021. Each five-minute episode will include one or two short stories based around current and upcoming Nicktoons like It's Pony.
The first large-scale look at Middlemost Post (not counting promotional appearances) premiered on this show in June 2021, in the form of small shorts showing the world of the show and its characters.
The first pair of MMP shorts premiered on June 11, 2021. 2 shorts are ran in pairs in a 10-minute timeslot.
|Title Card||Title||Synopsis||Air date|
|1||"Challenges"||Parker, Angus, and Russell become obsessed with doing challenges.||June 11, 2021|
|2||"Unboxing"||Parker receives a package for the first time.||June 11, 2021|
|3||"D.I.Y."||Parker, Russell and Angus make a new friend.||June 18, 2021|
|4||"Travel"||Lily tells the audience the top things to do in Mt. Middlemost.||June 18, 2021|
|5||"Welcome"||Parker takes a new resident on a whirlwind tour around the mountain.||June 25, 2021|
|6||"Skip Ads"||Quick advertisements that give background on the Middlemost Post crew and Lily's Somewhere Store.||June 25, 2021|