Pluto TV's Unsolved Mysteries channel is a weird time capsule. You're getting episodes from the original run, Robert Stack in his trench coat, foggy reenactments, that synth score that still gives you chills. The production values feel dated now, but that's the point. This isn't glossy true crime; it's grainy, earnest, unsettling. Episodes cycle in blocks, so you might catch the same case twice in a day. Annoying? A little. But it also means you can drop in anytime and immediately get hooked on a 1993 segment about a UFO sighting in rural Oklahoma. The category is Series tv United States, and this is pure American broadcast nostalgia. If you want slick HBO documentaries, look elsewhere. If you want Robert Stack staring into your soul while a witness describes a ghost, this channel delivers. To watch Unsolved Mysteries online, just jump into the Pluto TV lineup, no login, no fuss. The commercials are there, but oddly they add to the time-travel vibe. For Unsolved Mysteries live, this is the only place running it 24/7. It's comfort food for paranormal junkies.