In the previous episodes with the publisher, the publishers name is "Harrison Whitby" and he is played by Chris Parnell, however in this episode, his name is "Garrison Whitby" and he is played by Paul Scheer.
Barry sorts M&M's, but the bowl contains blue M&M's. The blue color wasn't introduced until 1995, but the episode is set "in the 80's".
Takes place January 27th but all outdoor shots show green leaves, Adam and Pops go diving at an outdoor pool, and Barry and the JTP get sunburned while trying to get a tan on a building roof. None of those are possible in SE Pennsylvania where the show is set at that time of year.