Best of
2 full episodes that Superstore - NBC.com posts free on Superstore, its own YouTube channel, in the order of the playlists it made for the series. Each plays in YouTube's player, with YouTube's ads, loaded only when you press Play on its page.
Season 6
Compilations, marathons and "best of"
Each as its own title calls it. They gather several episodes or parts of them, so they are not numbered with the episodes.