The Collector refers to Murphy as "Bright Eyes." This is what Charlton Heston's character was called in Planet of the Apes (1968).
The beat up Cadillac DeVille that the Delta X-Ray Delta group drive in this episode is a reference to the car driven in the film The Return of the Living Dead (1985).
Doc's crowbar is a nod to Gordon Freeman's zombie-smashing crowbar from the Half Life games.
The Collector's "show" that he records with Murphy resembles the comedy series Between Two Ferns with Zach Galifianakis (2008).