Remember this background from “The Limit,” the one with the hot dog knights? Or maybe that was your parents’ Adventure Time. Either way, the episode’s background designers were ghostshrimp and Santino Lascano. The painters were Martin Ansolabehere, Sandra Calleros, and Ron Russell. Nick Jennings is the show’s art director. “The Limit’s” creative directors were Pat McHale and Cole Sanchez.