The 2021 Halloween episode of Marvel's WandaVision aired in February, which will probably lead to it being neglected in this season's viewings. It doesn't help that it takes place in the middle of a heavily serialized storyline, so it can't function well as a stand-alone one to watch for Halloween. Nonetheless, its ambience is fantastic; up there, in my opinion, with Trick 'r Treat and the opening shot of H20: Halloween Twenty Years Later.
For those who haven't watched WandaVision, its format is that each episode mimics the style of TV sitcoms from a particular time, from The Dick Van Dyke Show era to that of Modern Family. These recreations are meticulous, not just in the wardrobe and set decoration, but also the lighting, camera angles -- everything. This episode, "All-New Halloween Spooktacular!," clearly evokes Malcolm in the Middle as its primary influence, and that chaotic energy is perfect for Halloween, with shaving cream pranks and smashed pumpkins, courtesy of Wanda's visiting brother, dubbed "a man-child" by the precocious Malcolm-like narrator. Wanda and Vision dress in kitschy costume versions of their original outfits from the comics, and a whole panorama of neighborhood kids trick or treat in broad daylight.
Later, they attend the delightfully named "Town Square Scare," complete with a hay bale maze and goofy inflatables.