Just a heads up if you haven't seen it, but there's a new tv show called Skinwalker Ranch that has a bit in common with Ancient Aliens and some of the (better) hosts, if you will.
What got my attention last night occurred with these cows freaked out on the ranch and one died suddenly. the 'hosts' were using all kinds of paranormal detection gear and they were able to show that a UFO appeared momentarily just when the cow died AND when there was high spike in electromagnetic energy, or some such thing.
I find this approach very interesting, and certainly beyond any approach I would have taken. Seems like we may be getting better at this kind of detection, unless of course Skinwalker itself is another form of veiled disclosure. Check it out if you haven't seen the show.