Lionsgate timely released "Ancient Aliens" S12 V1 on November 19, 2019 less than a week after the November 15, 2019 broadcast of the final episode of that season of that still-going-strong History Channel documentary series. This release also is the latest "Aliens" one (including a reviewed epic 10th anniversary set) from Lionsgate.
As prior posts on these releases note, the best broad perspective with which to view these episodes is that no one has proven that aliens capable of visiting Earth do not exist. Narrowing in, an inquiring mind that wants to know should consider that the odds are not in our favor as to our blue marble being the only planet in the universe (or even our galaxy) regarding factors converging in a way that an "advanced" civilization develops.
The final perspective is the importance of remembering that there is your side, the side of the other guy, and the truth.
This set starts out very strong with the season-premiere "Return to Antarctica" episode. The experts and the witnesses who discuss theories as to what lies beneath the thick ice layer that encases the ground of that continent evoke strong thoughts of both the equally intriguing sci-fi television franchise "Stargate" and the cult-classic John Carpenter film "The Thing."
Much of theme of this one is that the brothers from another planet use concealed artificial caverns for ingress and egress to secret bases. A Navy veteran shares his accounts of seeing UFOs and of rescuing a petrified research team ala the chum in "Thing."
One of the more entertaining recounts in "Antarctica" is of a three-way dogfight between Allied, Axis, and alien flying machines. This is part of a segment on Hitler looking to the stars for an edge.
"The Badlands Guardian" centers around the titular Canadian geoglyph and has a similar theme of exploring below the surface as "Antarctica." The idea is that this huge image of a what may be an indigenous person, an alien, or a love child of the two is intended for use by spacecraft. This ties into the regular "Aliens" theme that all humans may be descendants of beings from other planets.
"Element 115" is another strong entry; this one largely focuses on the Roswell crashes. The main expert this time is a scientist who asserts that the titular element is of alien origin and allows for space travel. The rest of the story is that the US is working to adapt that technology. Engaging analysis of footage from the US military supports the theory that such a craft exists.
"The Star Gods of Sirius" focuses on beings from the "B" star making contact in ancient times to help us advance. Once again, artifacts are shared for the purpose of supporting that theory.
Further entertainment comes in the form of exploring under the sea, asserting that there is more to the Mayans than meets the eye, and showing similarities between Druids and Mormons as to the origins of their beliefs. This evolves to episodes that assert that aliens are skilled geneticists.
The good news for believers regarding all this is that it supports their beliefs; the good news for agnostics is that it is acknowledged that somethings are tough to explain; the good news for everyone else is that "Aliens" is highly entertaining and is well-produced.