When Vision phases through the wall into Wanda's room, this is apparently the first time he has done this. We see later on in Captain America: Civil War (2016), that he has done this before when Wanda says "Vis! We talked about this".
In Wanda's favorite episode of The Dick Van Dyke Show (1961), "It May Look Like a Walnut", Robert Petrie is having a nightmare and wants to wake up.
In keeping with the theme, the title uses a term frequently used in TV series and it actually deals with the incidents that happened before WandaVision.
In a possible tribute to Stan Lee, Wanda's car bears the new New York "Excelsior" license plates.