It’s one thing to go to the theaters and watch a really scary horror movie, but it’s quite another to get hooked on a weekly television series. Throughout the history of television, movie makers have been putting together shows that thrill us and make it hard to sleep in a dark room at night. Why do we keep going back for more? Because they are so entertaining that they keep us interested in finding out more! Even re-runs of older shows from the 1950s and 60s are still fun to watch. They show us how the horror genre has evolved through the decades in film and television production. We’ve put together a list of the top 20 scariest television shows of all time for your entertainment.