You will Watch The Scooby-Doo Show Season 3 Episode 4 online for free episodes with HQ / high quality. Stream cartoons The Scooby-Doo Show Episode 28 To Switch a Witch. On Halloween night, the New England town of Salem is being haunted by the ghost of witch Melissa Wilcox, who was burned at the stake in 1778. After receiving a vexing call from their friend Arlene Wilcox, a descendant of the accused witch, the gang arrives to help, despite being warned off by the town’s mayor. The witch, it seems, looks exactly like Arlene. Soon after the gang’s arrival, the townsfolk hold a council and decide to take Arlene into custody and make her confess that she has been taken over by the witch. As Shaggy and Scooby prepare for Halloween, they encounter the witch.