TV THIS WEEK: The Simpsons 'Treehouse of Horror,' What If…? finale, Muppets Haunted Mansion, La Brea & more

If you've been having trouble getting into the Halloween mood, we have some good news — this week's TV is loaded with enough spooky, scary shows and movies to get just about anyone in the mood for a good fright. If you're still not ready for scares, we have plenty of thrills and twists, too. Let's dig in.

The Disney+ special Muppets Haunted Mansion makes its debut this week, along with the season finale of Marvel's animated What If...? series (which promises one heck of a MCU-busting shake-up after last week's Ultra-Ultron-centric episode). NBC has the second episode of its hit sci-fi mystery thriller La Brea, which ripped a sinkhole to... somewhere last week, and we're dying to find out more. The CW has plenty of new stuff, including that Legends of the Hidden Temple revival, the season finale of Riverdale, the season premiere of Nancy Drew, and more.

The Simpsons is dropping its annual "Treehouse of Horrors" special this week and AMC has a loaded zombie slate with The Walking Dead's midseason finale, plus a new episode of The Walking Dead: World Beyond. Paramount Plus has the Season 2 finale of the excellent horror series EVIL and HBO Max has new episodes of DC shows Doom Patrol and Titans. If you're jonesing for a few more chills, SYFY has the network premiere of the recent horror adaptation Scary Stories to Tell in the Dark.

Check out the full rundown below.

HIGHLIGHTS

La Brea (NBC), Tuesday 9 p.m. - "Day Two"

With Josh's life on the line, Eve traverses the dangerous wilderness back to the clearing to save him; desperate to kickstart a rescue mission, Gavin and Izzy work to prove survivors are alive inside the sinkhole as government agents track them.

Marvel's What If…? (Disney+), Wednesday - Season Finale

SEASON FINALE: Flips the script on the MCU, reimagining famous events from the films in unexpected ways. Marvel Studios' first animated series focuses on different heroes from the MCU, featuring a voice cast that includes a host of stars who reprise their roles. The series is directed by Bryan Andrews; AC Bradley is head writer.

Muppets Haunted Mansion (Disney+), Friday

PREMIERE: The Great Gonzo – world famous daredevil artiste, has done it all, seen it all, and survived it all. But on Halloween night, the fearless Gonzo takes on the greatest challenge of his life by spending one very daring night in the most grim grinning place on Earth …The Haunted Mansion.

Legends of the Hidden Temple (The CW), Sunday 8 p.m. - "Hero Twins"

SERIES PREMIERE: Five teams journey through a mysterious jungle where they compete to enter the ominous temple, avoid the dreaded temple guards, retrieve a lost treasure and return it to its rightful owner.

The Simpsons (Fox), Sunday 8 p.m. - "Treehouse of Horror XXXII"

Bong Joon-ho's "Parasite," Bambi's revenge and much, much more are featured in the annual Halloween special.

The Walking Dead (AMC), Sunday 9 p.m. - "For Blood"

MIDSEASON FINALE: The Reapers defend Meridian from an incoming herd; Pope suspects Maggie is behind the attack, while Daryl treads carefully; Alexandrians scramble to protect themselves when a violent storm leaves them vulnerable to walkers.

MONDAY

Ordinary Joe (NBC), Monday 10 p.m. - "Happy Birthday Jenny"

Jenny Banks' birthday gives everyone something to celebrate; Music Joe crashes Jenny's party while Amy is in full campaign mode; Nurse Joe and Christopher try to plan the perfect cake for Jenny; Cop Joe and Amy take a big step in their relationship.

Roswell, New Mexico (The CW), Monday 8 p.m. - "2 Become 1"

A desperate Liz agrees to a deal; Rosa helps Isobel make a big discovery; the fight to save Max begins.

Creepshow (AMC), Monday 10 p.m. - "Night of the Living Late Show"

Season 2 of the Shudder hit rolls out on AMC: Simon has invented an incredible virtual reality experience that allows him to join in on his favorite films but is unprepared for when virtual reality becomes his actual reality.

TUESDAY

DC's Stargirl (The CW), Tuesday 8 p.m. - "Summer School: Chapter Nine"

Pat is reminded of painful memories from his past; Mike is forced to confront the guilt he feels for his role in Icicle's death; Courtney struggles to hold on to hope after Eclipso targets those around her.

La Brea (NBC), Tuesday 9 p.m. - "Day Two"

See more in our "Highlights" section above.

Supergirl (The CW), Tuesday 9 p.m. - "Magical Thinking"

Lena is uncertain about using her magical abilities to help Supergirl retrieve the second totem from Nyxly; William struggles to write a story on the Super Friends that makes both the heroes and Andrea happy.

WEDNESDAY

Marvel's What If…? (Disney+), Wednesday - Season Finale

See more in our "Highlights" section above.

There's Someone Inside Your House (Netflix), Wednesday

FILM PREMIERE: Makani Young has moved from Hawaii to quiet, small-town Nebraska to live with her grandmother and finish high school, but as the countdown to graduation begins, her classmates are stalked by a killer intent on exposing their darkest secrets to the entire town, terrorizing victims while wearing a life-like mask of their own face. With a mysterious past of her own, Makani and her friends must discover the killer's identity before they become victims themselves.

Riverdale (The CW), Wednesday 8 p.m. - "Chapter Ninety-Five: RIVERDALE: RIP (?)"

SEASON FINALE: As the gang pick up the pieces after a rough year back in Riverdale, an incident at Pop's forces them to make a difficult decision about the future of the town.

Ant-Man (SYFY), Wednesday 9 p.m.

Armed with a suit that allows him to shrink in size but grow in strength, Ant-Man (Paul Rudd) must prevent Dr. Hank Pym's former protégé (Corey Stoll), also known as Yellowjacket, from perfecting the same technology and using it as a weapon for evil.

American Horror Story: Double Feature (FX), Wednesday 10 p.m. - "Inside"

The president struggles with the morality of a deal he must make.

THURSDAY

Frogger (Peacock), Thursday - New Episode

The show FROGGER brings to life this popular franchise and supersizes it on an epic course! Audiences and contestants alike will be transported into a wild, whimsical FROGGER world, filled with all the simple but challenging elements of the mega-hit from Konami.

The Lost Symbol (Peacock), Thursday - New Episode

Based on Dan Brown's international bestselling thriller "The Lost Symbol," the series follows the early adventures of young Harvard symbologist Robert Langdon, who must solve a series of deadly puzzles to save his kidnapped mentor and thwart a chilling global conspiracy.

Star Trek: Lower Decks (Paramount Plus) - New Episode

Developed by Emmy Award winner Mike McMahan, STAR TREK: LOWER DECKS focuses on the support crew serving on one of Starfleet's least important ships, the U.S.S. Cerritos, in 2380. Ensigns Mariner, Boimler, Rutherford and Tendi have to keep up with their duties and their social lives, often while the ship is being rocked by a multitude of sci-fi anomalies.

Titans (HBO Max), Thursday - New Episode

Titans follows young heroes from across the DC Universe as they come of age and find where they belong. In season three, circumstances draw our heroes to Gotham City, where they will reunite with old friends and face new threats.

Doom Patrol (HBO Max), Thursday - New Episode

Season three opens on the culmination of Dorothy's confrontation with the Candlemaker that leads to a devastating loss. The Doom Patrol is at a difficult crossroads and each member struggles to face who they are and who they want to be. And things get a whole lot more complicated when Madame Rouge arrives in a time machine with a very specific mission, if only she could remember it.

Ghosts (CBS), Thursday 9 p.m. - "Pilot; Hello!"

SERIES PREMIERE: Samantha and Jay throw caution to the wind when they decide to convert a rundown country estate they inherited into a bed and breakfast; Sam thinks she's crazy because she sees ghosts and tries to ignore them.

The Outpost (The CW), Thursday 9 p.m. - "Nothing Lasts Forever"

Talon and her friends battle against the gods; Janzo, Wren and Munt fight to save the Kahvi; a ruler is crowned.

Scary Stories to Tell in the Dark (SYFY), Thursday 9 p.m.

NETWORK PREMIERE: Young Sarah Bellows turns her tortured life and horrible secrets into a series of scary stories. These terrifying tales soon have a way of becoming all too real for a group of unsuspecting teens who stumble upon her spooky home.

FRIDAY

Muppets Haunted Mansion (Disney+), Friday

See more in our "Highlights" section above.

SEE (Apple TV+), Friday - New Episode

Takes place in the distant future, after a deadly virus decimated humankind. Those who survived emerged blind. Jason Momoa stars as Baba Voss — the father of twins born centuries later with the mythic ability to see — who must protect his tribe against a powerful yet desperate queen who wants the twins destroyed. Alfre Woodard stars as Paris, Baba Voss's spiritual leader.

Foundation (Apple TV+), Friday - "Barbarians at the Gate"

Based on the award-winning novels by Isaac Asimov, "Foundation" chronicles a band of exiles on their monumental journey to save humanity and rebuild civilization amid the fall of the Galactic Empire.

Nancy Drew (The CW), Friday 9 p.m. - "The Warning of the Frozen Heart"

SEASON PREMIERE: The body of a mysterious young man is discovered on the Hudson carnival grounds; the friends are drawn into the case by a host of confounding clues surrounding a new menace terrorizing the town.

Separation (SYFY), Friday 9 p.m.

NETWORK PREMIERE: A lonely little girl finds solace in her artist father and the ghost of her dead mother.

Eli Roth's History of Horror (AMC), Friday 10 p.m. - "Infections"

Horror has warned about pandemics for years, in films that mirror reality ("Outbreak," "Contagion," "12 Monkeys"), surreal plagues ("Shivers," "Rabid"), zombie outbreaks ("REC," "Pontypool") and pathogens from space ("The Andromeda Strain").

SATURDAY

Hocus Pocus (Freeform), Saturday 7:40 p.m.

Halloween trick-or-treaters come face to face with three witch sisters (Bette Midler, Sarah Jessica Parker, Kathy Najimy) from the past in Salem, Mass.

Voyagers (HBO), Saturday 8 p.m.

NETWORK PREMIERE: With the future of the human race at stake, a group of young men and women embark on an expedition to colonize a distant planet. As life on the ship descends into chaos, they soon become consumed by fear, lust and an insatiable hunger for power.

Cult of Chucky (SYFY), Saturday 9 p.m.

Chucky returns to terrorize his human victim, Nica, who is confined to an asylum for the criminally insane. Meanwhile, the killer doll has some scores to settle with his old enemies, with the help of his former wife.

SUNDAY

Evil (Paramount Plus), Sunday - Season 2 Finale

SEASON FINALE: A psychological mystery that examines the origins of evil along the dividing line between science and religion. The series focuses on a skeptical female psychologist who joins a priest-in-training and a carpenter as they investigate the Church's backlog of unexplained mysteries, including supposed miracles, demonic possessions, and hauntings. Their job is to assess if there is a logical explanation or if something truly supernatural is at work.

The Simpsons (Fox), Sunday 8 p.m. - "Treehouse of Horror XXXII"

See more in our "Highlights" section above.

Legends of the Hidden Temple (The CW), Sunday 8 p.m. - "Hero Twins"

See more in our "Highlights" section above.

Birds of Prey (and the Fantabulous Emancipation of One Harley Quinn) (TNT), Sunday 8 p.m.

NETWORK PREMIERE: Harley Quinn faces the wrath of narcissistic crime boss Black Mask and every other thug in Gotham. But things soon even out for Harley when she becomes unexpected allies with three deadly women -- Huntress, Black Canary and Renee Montoya.

Killer Camp (The CW), Sunday 9 p.m. - "A Smashing Sequel"

SEASON PREMIERE: Challenges include a hilarious walk across a slippery pole to bank cash for their prize fund and a duel with bloody arrows to win immunity; bromances blossom, a risky love triangle forms and one camper is ultimately sent into the woods to die.

The Walking Dead (AMC), Sunday 9 p.m. - "For Blood"

See more in our "Highlights" section above.

Family Guy (Fox), Sunday 9:30 p.m. - "Must Love Dogs"

Quagmire meets an avid dog lover, and pretends Brian is his dog in an attempt to win her over; Chris helps Stewie track down the culprit who stole his Halloween candy.

The Walking Dead: World Beyond (AMC), Sunday 10 p.m. - "Foothold"

While some members of the group enact a plan to cover their tracks, others attempt to acclimate to their new surroundings.

The Osbournes Want to Believe (Travel), Sunday 10 p.m. - "Time to Believe"

Jack has some new tricks up his sleeve as he tries to convince his parents that time travel is real; he also shares evidence of ghostly attacks on the living, an Alexa possessed by an evil spirit, and an Ice Age UFO.

*TV listing information via Zap2it, streaming and network listings.