In the "Lady With A Dead Fetus Attached To Her Head" episode, there is a scene when Cartman, Stan, Kyle, and Kenny go over to Kyle's. There, Mrs. Broslofski reads a book about freaks to the boys. They soon run outside screaming. This is where the thing is. When it showed an outside shot of the house, it was nighttime. When the boys ran out screaming, it was daylight.