I watch too many shows. I won't list all of them for your sake
But I third/fourth Supernatural, it's a fun show, with lots of supernatural stuff
Teen Wolf is surprisingly good for being an MTV show with the title Teen Wolf, like, I really love the show.
I just watched all five seasons of Castle in about two weeks, and I'm a fan of it. (I actually started watching it just because I'd heard about the firefly references)
Which brings me to firefly
Also, Chicago Fire, Buffy the Vampire Slayer, Friends, HIMYM, Pysch, and White Collar are all good
ETA: Night Vale isn't exactly a tv show, it's a podcast (I think that's what its called) and its good so far, but I've had a heard time following it because I suck at listening to shows