The RTL-SDR makes an appearance on the History channel’s Secret of Skinwalker Ranch! They are really fun devices for exploring the radio spectrum through software defined radio (SDR for short). This link will take you to my series on the subject which was my “gateway drug” to amateur radio!
The History Channel show is about a ranch in Utah that is connected to the US government’s studies of Unidentified Aerial Phenomena (UAPs). Apparently the government spent quite a bit of money trying to make sense of it all. Visitors and residents of the ranch have experienced quite a bit there: UFOs, poltergeist activity, cattle mutilations, strange creatures, you name it.
A recent book entitled Skinwalkers at the Pentagon details some of the work of those government investigators.