Vince Gilligan has confirmed that the desert in which Jimmy (Bob Odenkirk) negotiates with Tuco (Raymond Cruz) is the same spot where Walter White (Bryan Cranston) gives his "Say My Name" speech.
Tuco Salamanca (Raymond Cruz) is seen looking after his grandmother; in Breaking Bad (2008) he was seen looking after his uncle. In both episodes, he is shown preparing food for the relative he's tending.
When Jimmy (Bob Odenkirk) is caught looking at himself in the bathroom mirror saying, "It's showtime!" he insists, "Hey, it's in a movie!" He is referring to Bob Fosse's film All That Jazz (1979).
This episode marks the earliest chronological appearance of Gonzo (Jesus Jr.) and No-Doze (Cesar Garcia), who first appeared in Breaking Bad (2008).
The number Nacho gives Jimmy, (505) 242-6087 is an actual number you can call that will go straight to Nacho's voicemail.