For whatever reason, when a new art form or medium gets to appear in some capacity on a late night talk show, that art form/medium gets lent a bit more credibility in the mainstream.
Certainly, Marc Maron and Chris Hardwick appearing consistently on late night has gotten podcasting more out there, but they already had a bunch of stuff going on outside of their gigantic podcasts as well.
Something like Welcome to Night Vale, which rose fast through the ranks simply as an engrossing, out-of-left-field, funny podcast making an appearance on something like The Late Show with Stephen Colbert definitely is pretty great moment for the show itself as well as podcasting as a whole.
So, knowing all that, enjoy Cecil Baldwin go through Night Vale’s Community Calendar live on Colbert.