Not to mention that in the first season, when you look in the background of the room where McConaughey is doing his research, you see the now all too familiar spiral logo.

I didn’t know about that at the time it originally aired but now that season really makes the hairs on the back of your neck stand up.

There is occult symbolism throughout but I didn’t recognize the significance of it when I watched it the first time. Of course, by the 3rd season, they changed their tune and (spoiler alert) the occult stuff is a head fake.