'Swamp Murders' (Investigation Discovery)
If you share any similarities with the demographic known as "practically everyone," you enjoyed True Detective. And if you particularly liked that show's grisly murders and mise-en-scene, you'll want to kiss the geniuses at Investigation Discovery on the mouth for this nugget of market-research gold. Swamp Murders has the basic narrative of all the channel's true-crime shows, but with more brackish water and the knowledge that there's something primally terrifying about a swamp's bottomless murk. The show is so setting-specific that it can't help but occasionally wink at viewers with a "you know you love it" self-awareness – which is fine, because we do.