Marshall changes his watch for Daylight Saving Time, then finds the next morning that Eerie is deserted. As he walks out his front door, he stands on the sidewalk while the camera gives a wide shot from above showing the sidewalk and street empty. Marshall turns to walk down the street
looking for people, and suddenly he's in a neighborhood with no sidewalks nor curbs, very different from where his house sits.
To protest his parents' orders that "it's after midnight" and time to go to bed, Marshall counters, "But Dad, tonight's the night we set our watches back for Daylight Savings Time." Daylight Saving Time begins in Spring when clocks are set ahead one hour, not back.
At the beginning of the episode when Marshall is trying to get the attention of the "removal" guys, the reflection of the camera, lights and crew is visible in the sunglasses.
Marshall's dad states that all of Indiana does not follow setting their clocks back for daylight savings time. While it's true it would be 15 years later that much of Indiana started doing this, even in 1991 much of Indiana did follow the practice of setting the clocks back an hour in the fall and forward in the spring.