The Floor | 9pm | Fox

As we hit the halfway point on this season of The Floor, hosted by Rob Lowe (9-1-1: Lone Star), an unlikely competitor takes control of the game. The winner of each timed head-to-head trivia duel takes control of their opponent’s square, while the loser goes home. Only one player will walk away with a life-changing […]

FBI: International | 9pm | CBS

The deputy inspector general calls on Tate, who is fluent in Spanish, to take on her first undercover field mission, joining Wes and the team in Spain as they investigate a seemingly dirty U.S. Drug Enforcement Administration special agent working out of Madrid.

9-1-1: Lone Star | 8pm | Fox

TK gets a huge surprise on his 30th birthday when his stepdad Enzo (guest star Henry Ian Cusick) arrives in Austin along with TK’s young half-brother Jonah; Owen’s resentment of Enzo turns physical; Tommy is determined to push through her latest crisis; Wyatt attempts to talk-down a suicidal caller and the 126 must perform a […]

The Simpsons | 8pm | Fox

Girls just want to have funny.

SWAT | 8pm | CBS

A blackout throws the city into chaos, forcing 20-Squad onto the streets for an emergency patrol day, which quickly escalates when Hondo and team uncover a terror threat.

Ghosts | 8:30pm | CBS

Trevor, who has catfished his way into a remote financial analyst job, is in hot water when he’s summoned to a mandatory in-person work retreat. Also, Hetty and Sass start a rumor about Pete.

Chicago Med | 8pm | NBC

Chicago P.D. steps up Goodwin’s security after she’s threatened online by a former employee. Archer and Frost treat victims from a disciplinary camp injured during a rockslide. Maggie gets roped into delivering a high schooler’s baby.

The Voice | 8pm | NBC

The Battle Rounds conclude as Michael Bublé, Snoop Dogg, Reba McEntire and Gwen Stefani prepare their artists in hopes of advancing to the Knockouts. Each coach has two steals in this high-stakes round.

The Simpsons | 8pm | Fox

Giant monsters created by political rage threaten to tear the town apart, a Victorian Mr. Burns is jump-scared on Thanksgiving by the ghosts of his abused workers, and Homer bonds with a pair of extra-terrestrial jeans in an unforgettable stop-motion adventure that can only be called… Denim.

SWAT | 8pm | CBS

20-Squad faces down a prison hostage situation, only to be thrown into deeper danger when a bomb explodes, freeing maximum-security prisoners from their cells, including someone with a personal grudge against Hondo.

Ghosts | 8:30pm | CBS

The ghosts, seeking some excitement during a low-key Halloween, join Patience (Mary Holland) in putting Sam on a witch trial.

Abbott Elementary | 9:30pm | ABC

It’s Halloween at Abbott Elementary! Janine and Gregory proudly show off their couple’s costume, but it fails to translate. Meanwhile, Barbara faces pushback from parents concerned about hygiene and her beloved apple-bobbing tradition.

The Irrational | 10pm | NBC

Alec and Marisa attend a wedding of the daughter of a mutual friend that’s located inside a foreign embassy, where the father of the bride has been ensconced for diplomatic reasons. Their night off quickly turns into a murder investigation.

NCIS | 9pm | CBS

NCIS is called in to investigate when a lieutenant returns home on the eve of Halloween to find a surprise party being thrown for someone else at his place. Donna Mills guest stars as Wanda Prescott, an antiques collector and the widow of a billionaire investment guru.

The Simpsons | 8pm | Fox

An unearthed corpse opens up a cold case from Springfield in the 1980s… as well as a steamy relationship between young Grampa and Agnes Skinner.