Monsters Inc., about a world of monsters whose society is powered by human screams, might be the most underrated in the entire Pixar catalog.
Given the fact that its premise is essentially a workplace comedy, it should work very well as a series.
It spawned one prequel already, 2013’s Monster University featuring the two lead characters (Billy Crystal’s Mike Wazowski and John Goodman’s Sulley) during their days in college.
I love High Fidelity, but this Monsters Inc. show is the one I’m really intrigued by.