Question: The Griswold family's vacation misadventures feature in both "Hotel Hell Vacation" and the "National Lampoon Vacation" series, as sanctioned by what company?
Sentence (from "National Lampoon's Vacation (film series)"): The National Lampoon's Vacation film series is a comedy film series initially based on John Hughes' short story "Vacation '58" that was originally published by "National Lampoon" magazine.
Relevant evidence: No