Among the items visible when Gaz opens the refrigerator, is a jar labeled "Liquid Pig Toes", and a milk carton. One one side of the carton it says "MILK - best before juice", and on the other - a picture of a guy signed "ROB HUMMEL is MEAT". Rob Hummel is the show's writer. However, moments later when the insides of the refrigerator are shown again, the picture is completely different and the writing on it says "Find me! I've been stolen."
The word "doom" along with its derivatives is uttered approximately 100 times throughout the episode, mostly by GIR during his "Doom Song" and Ms. Bitters during her "The Universe is doomed" lecture.