# Ancient

From [A&E Television Networks, LLC](https://www.history.com/) ([HISTORY](https://www.youtube.com/channel/UC9MAhZQQd9egwWCxrwSIsJQ) on YouTube). 4 full episodes.

## Season 1

1. [Earth’s Alien Energy Grid? | Ancient Aliens (S1, E8) | Full Episode](https://invisiblenetwork.ai/watch/rights-holders/HCZiLsPlO3o) (Full episode · Posted 2026 · 1 h 24 min)
2. [Mass Production Before Machines | Ancient Impossible (S1, E8) | Full Episode](https://invisiblenetwork.ai/watch/rights-holders/Vw_mEHtlBx4) (Full episode · Posted 2026 · 42 min)

## Season 20

1. [Did Aliens Guide Civilization? | Ancient Aliens (S20, E16) | Full Episode](https://invisiblenetwork.ai/watch/rights-holders/AHj0T0YCj4c) (Full episode · Posted 2026 · 42 min)
2. [Linda Moulton Explains Extraterrestrials | Ancient Aliens (S20, E18) | Full Episode](https://invisiblenetwork.ai/watch/rights-holders/MT_G3tOVxSI) (Full episode · Posted 2026 · 42 min)

## Compilations, marathons and "best of" (not episodes)

- [Secret Forces Guiding Humanity *Marathon* | Ancient Aliens](https://invisiblenetwork.ai/watch/rights-holders/3E4O6ICHHLE) (Marathon · Posted 2026 · 2 h 6 min): Free with YouTube's ads, posted by HISTORY
- [Earth's Alien Origins *Marathon* | Ancient Aliens](https://invisiblenetwork.ai/watch/rights-holders/ZgieGlgO5D8) (Marathon · Posted 2026 · 2 h 6 min): Free with YouTube's ads, posted by HISTORY