Ancient Aliens is an American television series that premiered on April 20, 2010 on the History channel.[1] Produced by Prometheus Entertainment, the program presents theories of ancient astronauts and proposes that historical texts, archaeology and legends contain evidence of past human-extraterrestrial contact.[2][3]
The series' de facto pilot was a TV special of the same name that aired on March 8, 2009. A second season began airing on Thursday, October 28, 2010 in the 10ET/9CT time slot.
On January 21, 2011, presenter Giorgio A. Tsoukalos announced on the Coast-to-Coast AM radio program that History green-lighted a 3rd season of Ancient Aliens to begin airing in late spring 2011. 
