The sillier this series becomes, the darker the reality appears. Marvel Studios WandaVision Explained is our ongoing series that keeps tabs on Marvel Studios’ sitcom saga about TV’s happiest tragic couple. In this entry, we turn our channel to WandaVision Episode 3 and consider the invaders who occupy their domestic dream. Yes, prepare for spoilers. Along with the release of the latest WandaVision episode, Disney+ unveiled its titles for the first three: “Filmed Before a Live Studio Audience,” “Don’t Touch That Dial,” and, for this week, “Now in Color.” As if you didn’t know already, Marvel is fully committed to this series’ sitcom sendup. The dedication is impressive but also a little constricting. The walls are closing in on our heroes, and their wide smiles cannot last for long.