There's a familiar face in the top spot and a mixture of the surreal, zombie-filled and haunting children's shows in the rest of the list. Keep reading to find out if your favourite frightener made the countdown.
1. Doctor Who
We've all heard the classic tales of Doctor Who's ability to scare - young children being terrified of the Daleks, or hiding behind the sofa when the show's creepy theme tune kicked in. Since its relaunch in 2005, the sci-fi drama has continued to send chills down viewers' spines all across the nation - think of the gas-mask zombies, the merciless Silence or the creeping psychological horror of 2008's 'Midnight'. And of course, there's the Weeping Angels - 2007's 'Blink' is quite rightly regarded as one of Doctor Who's scariest episodes!
Brrr! Even the mere mention of Ghostwatch can reduce its viewers to gibbering messes. Broadcast as if it was live, the one-off movie followed the investigation of a poltergeist in a London house. It was all a drama, of course, but it was all so realistically done that many people believed it was genuine. Sure, a ghost called Pipes doesn't sound terrifying, but the sight of Sarah Greene being dragged out of sight and a possessed Michael Parkinson has remained with people for years and years.
3. The X-Files
Who doesn't have a place in their heart for Mulder and Scully? Aliens and the paranormal are always going to be spooky, but The X-Files created a dark, terrifying atmosphere to keep you on the edge of your seat (or, indeed, hiding behind the sofa). Whether you were old enough to watch it at the time or snuck down way past your bedtime to cower behind your parents, The X-Files sticks out in your mind as one of the most frightening shows ever. And as for that theme tune - well, it can give you the heebie-jeebies right from the first note.
4. The Walking Dead
Right from the pilot episode we knew that The Walking Dead was going to be a special show. Sure, there aren't zombies all the time, but that makes their sudden appearances all the more terrifying. The Walking Dead is one of those shows that keeps you tense for the entire episode, and you genuinely feel that no-one in the show is safe. Add to that some gruesome gore and you've got one of the scariest shows there has been on television for a long time. Jumps, shocks, and lots and lots of blood - what more could you possibly want?
5. Twin Peaks
This cult ABC drama may never have been outright terrifying, but a spooky, unsettling atmosphere pervaded throughout. As FBI Special Agent Dale Cooper investigated the murder of homecoming queen Laura Palmer (Sheryl Lee), Twin Peaks went down an increasingly dark and surreal route. Without doubt the creepiest aspect of the series was the demonic entity BOB, played with chilling brilliance by Frank Silva.
6. Are You Afraid Of The Dark?
A bunch of kids telling ghost stories around the campfire - that's not too scary, right? Apparently it was as it seems plenty of you were left with terrifying memories by The Midnight Society's chilling tales. Not only did the show give kids the willies, it can also lay claim to giving early acting roles to the likes of Ryan Gosling, Neve Campbell and Melissa Joan Hart.
Not even some dire child acting could ease the spine-chilling horrors of the Goosebumps adaptations. The Night of The Living Dummy episode ruined the art of ventriloquism for any child who saw it and the show was deemed so frightful in parts that CBBC actually had to edit and ban particular episodes for overstepping the line with the heebie-jeebies.
8. The Demon Headmaster
What's scary about a Jack Straw lookalike with dodgy specs and googly eyes? Quite a lot, actually. The popular Demon Headmaster children's books were given a swish TV makeover by CBBC in the '90s and Terrence Hardiman's turn as the terrifying school master from hell was fearsome.
Supernatural thrives on variety - for every episode that has you shaking with tension, there's another that has you choking with laughter. But when the show does decide to turn up the fear factor, boy does it get creepy! Spooky highlights from the show's seven-year run include the urban legend of Bloody Mary in season one, the terrifying dolls of season two's 'Playthings' and the creepy children of season three's 'The Kids Are Alright'.
The docudrama that terrified a nation, Threads chronicles the effects of Nuclear conflict between the US and the Soviet Union on two families in Sheffield, Northern England. At the time, the horrific events unfolding on screen seemed frighteningly plausible to
British citizens. US TV movie The Day After covered similar ground in 1983, but a contemporary review of both films noted, "Threads makes The Day After look like A Day at the Races."
Share your memories on your favourite scary TV shows below...
Additional reporting by Alex Fletcher