Can you believe it took Friends a whopping eight seasons to have a Halloween episode?! But when they did, it was one to remember. Monica and Chandler throw a costume party, so naturally Ross dresses as "Spud-nik," a potato satellite and Sean Penn plays Phoebe's love interest. Yes, that Sean Penn. 

From, "We'll always remember that he was this tall," to "Feffy?" this episode goes down as one of the best, most quotable episodes of the show.

This episode of Paul Feig's cult hit TV show expertly explores the phenomenon of getting too old to go trick-or-treating. Sam convinces his buds to go with him, but the eggs start flying when Lindsey reluctantly drives around with her trouble-causing friends. Let's be honest though. The highlight of this episode is Bill's costume: the Bionic Woman.

Local Pawnee teen Greg Pikitis terrorizes the Parks department every year, and this time, Leslie's had enough. There's toilet paper vandalism and Tom dresses up as an all-too-convincing T-Pain. 

Stevil is an evil ventriloquist dummy version of Urkel that has a life of its own and haunts the whole family. This episode is legitimately terrifying and should never have made it on a family television show.

Halloween is perfect for pranks and that's exactly what this episode is: a series of pranks. Every member of the Taylor clan scares each other, until a stranger shows up at their house and asks to see the basement. The adults say he must be the crazy accused killer who escaped from the insane asylum. When the kids find out this is also a prank, it's game on! The layers of pranks are impressive in this classic episode.

Known for its movie parodies, Community clearly had to step it up for Halloween and step it up they did. "Epidemiology" is a pitch perfect homage to zombie movies that will go down in history as one of the best genre parody episodes of any sitcom.

Niles makes everyone dress up as literary characters. Roz thinks she's pregnant. As far as dramatic, costume-heavy Frasier episodes go, this one takes the cake. 

Happy Endings never quite garnered the audience it should have. (Clearly, judging solely on this picture, it should have been a classic.) In this episode, the gang attends one of those huge warehouse parties and things get predictably and hilariously out of control.

The office Halloween party is a special kind of horror all its own, and The Office portrays it masterfully in this episode. This episode gives us "Three-hole-punch Jim," "Black cat Pam" and, perhaps the scariest of all, two-headed Michael Scott.

The Simpsons' annual "Treehouse" episodes are some of the best and the fifth installment is particularly lauded for its genius parody segments. "The Shinning" will have you repeating, "No TV and no beer make Homer go crazy!" all day long. 

A murder mystery weekend at a mansion is a perfect place for spooky happenings and that's exactly what happens in this episode. When the host goes missing, it's the gang's job to find out what's going on.

This awesome episode highlights Phil and Claire's absolute love for Halloween. All they want to do is scare the daylights out of their own children and create the best haunted house in the neighborhood. 

The Brady Bunch kids' definition of trouble was always adorable, wasn't it? In this episode, the boys trick Cindy and Jan into thinking they saw a ghost, so the girls decide to get back at them by daring them to sleep in the attic. These kids were real hooligans, weren't they?

The Adventures of Pete and Pete is hardly a kids show. It holds up today and has become a true classic. This Halloween episode is about that conundrum of conundrums: getting too old for Halloween. Big Pete complains that Halloween is for "halloweenies." But little Pete isn't deterred. He's just warned to watch out for "Pumpkin Eaters," a gang of unknown kids with pumpkins on their heads whose mission it is to ruin Halloween for all the good trick-or-treaters. 

Everyone knows you go trick-or-treating in the wealthy neighborhoods to get full candy bars. Bob's Burgers Halloween episode from Season 3 took this idea and Belcher-ed it up good. Tina, Gene and Louise face off against teenage bullies that roam the streets looking for kids to squash in a terrifying tradition called "Hell Hunt," while Bob dons a fat suit and potentially accidentally kills Teddy's pet guinea pig. 

Roseanne was known for its Halloween episodes, and "BOO!" got it started in the second season of the show. The Conners convert their house into the Tunnel of Terror, which is a horrifying concept for any kid who just wants some candy, but boy, did it make good television.

Ah, the lasting allure of the Slutty Pumpkin. Ted obsesses over this mystery woman (per usual), and Lily and Marshall prove they are the cutest (per usual) with all their adorable couples costumes.

If you're a teenage witch, maybe don't have a Halloween party. Because that party might get terrorized by a scary talking doll. And scary talking dolls are really scary.

The Scooby-Doo Show is full of spooky goodness, but this episode actually takes place on Halloween, at a party in a mansion. As usual, the gang encounters the Headless Horseman and investigate for clues. Naturally, those meddling kids and that goofy Great Dane solve the mystery!