Simpsons Season 18, Episode 4: Treehouse of Horror XVII

"Married to the Blob" - a take-off on The Blob, with Homer in the title role as radiation from a meteor turns him into a blob-like monster. "You Got to Know When to Golem" - A take-off on an old Jewish legend. "The Day the Earth Looked Stupid" - in the late 1930s, Kang and Kodos land in Springfield as part of an alien invasion, but the town, comple...