Probing Ancient Aliens

What’s the difference between the classic disc / saucer shaped UFO, and the oft-reported triangle and cigar shaped UFOs? Do the different shapes house different technology? Are they specialized in some way? Do different races of aliens use different craft as a cultural representation? We don’t know, but our plucky Ancient Astronaut Theorists sure think they do! Let’s prooooooooooooobe into Season 15, Episode 11 of Ancient Aliens: The Ultimate Guide to UFOs!!!!