Media Analysis and Franchise Report: Ancient Aliens (Seasons 1–20, 2009–2024) 1. Executive Summary Ancient Aliens is a documentary-style television series that premiered on the History Channel on April 20, 2009. Spanning 20 seasons over a 15-year period (2009–2024), the show has become a cultural phenomenon. It explores the pseudoscientific hypothesis that extraterrestrial beings visited Earth in antiquity and made contact with early human civilizations. The series posits that technologies, religions, and architectural marvels of the ancient world were influenced by these alien visitors. Hdhub4u-300mb