In Search of Aliens is an American television series that premiered on July 25, 2014 on the H2 channel. Produced by Prometheus Entertainment, the program follows Giorgio Tsoukalos, an ancient alien astronaut hypothesist and leading contributor to the television show Ancient Aliens, as he presents hypotheses and possible evidence of extraterrestrial life, mythological creatures, and other paranormal subjects. Episodes typically consist of Tsoukalos interviewing various experts and other sources about subjects such as the Loch Ness Monster, Bigfoot, and Atlantis in an attempt to determine whether or not they exist and if ancient astronaut theory is applicable to such topics.