I know some old folks who putter around the mall every day from open to close who might be Ancient Aliens... =S
Never seen the show. No interest in Aliens beyond the stuff relating to 2012.
There is pretty compelling evidence that Aliens visited MANY ancient cultures based on thousands of cave drawings from all corners of the earth, depicting similar images which some believe were merely wild imaginations, or depictions of gods.
People just go too far. Suggesting aliens put us here to mine gold and stuff... it's just too much.
To quote some guy from a TV show I saw a few years ago; "If there are intelligent beings out there, watching us from above. I think they're smart enough to stay away from us."