Expanding on the theory that extraterrestrials landed on Earth millions of years ago, “Ancient Aliens®: Season 17” arrives on DVD July 25th from Lionsgate. Narrated by Robert Clotworthy and created by Primetime Emmy®-winning executive producer (2002, Outstanding Non-Fiction Series, “Biography”) and documentary legend Kevin Burns (“Star Wars: Legacy Revealed,” “Lost in Space Forever,” “Empire of …