Rhett and Link of Good Mythical Morning's Rhett & Link test who knows one another best in Vanity Fair's "Rhett & Link Game Show." They are on the 21st season of their show, but how much do they actually know about each other? What time does Link go to sleep? What word or phrase does Rhett overuse? What would Link do for a living if he wasn't creating YouTube videos?

Rhett & Link are celebrating their 10-year anniversary and the 21st season of their show, Good Mythical Morning.

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