The agents of S.W.O.R.D. that have been changed into circus performers have a new logo on their car doors and the acronym has been changed to "Spectacular World Of Rapturous Diversions."
This episode is an homage to the mockumentary sitcoms The Office (2005), Modern Family (2009), and Arrested Development (2003).
The Nexus pharmaceutical ad ties to the Marvel comics. Nexus beings are individual entities unique to all multiverse and can affect probability and thus the future, thereby altering the flow of the Universal Time Stream. Wanda Maximoff is a nexus being in the comics.
Wanda's bedsheet features a hexagonal pattern on it.
The radio playing in the background in Wanda's kitchen is station W.N.D.A.