Joel welcomes guest Gillian Jacobs and checks in on dumb people saying dumb things, a stupefying tattoo and a baseball manager's uplifting ring tone.

Justin Hartley comes by to drop some knowledge, Joel introduces a new DNA testing service, and the International Corner makes a stop in Uganda.

Joe Manganiello returns with a mystery to solve. Joel shares a fun new tourism video, a celebrity-inspired phrase generator and home shopping gems.

Quilting enthusiast Ray Liotta defends his craft, then Joel puts the best of America on display in his "National Corner" and a new "That Happened."

YouTube star Markiplier shares highlights from the streaming world, Pizza Ghost returns with a new friend, and Lou Diamond Phillips challenges Netflix.

Joel impresses Jack Black with his storytelling abilities. Plus, a delusional "Bachelorette" contestant and clips from "Jersey Shore" spinoffs.