I've found the full History channel series here and I've been enjoying it.
http://www.free-tv-video-online.me/internet/ancient_aliens/index.html
Wendy
Ancient Aliens TV series
The Gathering Spot is a PEERS empowerment website
"Dedicated to the greatest good of all who share our beautiful world"
It's also on YouTube. The ads at project free tv may mess up your computer.
The series mentions the wing makers at one point in season 4. It's a good education in alternative theories about aliens and ancient cultures. Even though the made for tv format is a bit annoying, I'm learning enough new information that I'm finding it worth it. Some of the episodes are just meant for dramatic effects - sort of like ghost stories so I just skip those to get to the meatier topics.
Just search for "ancient aliens" at You Tube - it seems that all the episodes are there.