We thought we had seen the last of John Hodgman on The Daily Show after he said goodbye to Jon and headed for Mars back in April. In a twist straight out of a movie about a guy who goes to Mars only to make a surprise return, John returned from Mars last night for the first in a series of occasional Jon Stewart retrospectives.

This first look back focuses on Jon’s unmatchable erudition that has set him apart from his TV peers and made him the most beloved host since Lavar Burton. The retrospective was so touching that Jon was left genuinely touched so don’t watch it without a cry rag nearby!

Spend some more time not working by watch all 22 minutes of last night’s program complete with more presidential campaign coverage and an interview with Steve Buscemi.