8. 'American Horror Story' (2011-Present)
Ryan Murphy's FX series has been a showcase for some of the most treasured tropes horror has to offer as a visual genre — killer clowns, demonic nuns, haunted hotels, you name it. But every carnival needs its barkers, and Murphy has hired a murderers' row of actresses to fill that role, from Kathy Bates to Emma Roberts, Glenn Close to Lady Gaga. And in an era where the big-screen's genre offerings are still driven by found-footage minimalism, AHS's more-is-more attitude is a throwback to the days of the Grand Guignol. It's horror for the animated-GIF era.