The show, led by stars Joel McHale and Alison Brie, was set in the fictional twon of Greendale, Colorado and followed a bunch of community school kids and their tutors.
It was popular because of its wry quips, pop culture references and occasional musical interludes, but suffered a tough season four after the controversial loss of Harmon.
Co-star Chevy Chase also quit, and original cast member Donald Glover starred in only a handful of episodes.
