‘Sunny’ Wedding Daze, ‘Furious,’ Dancing While Teaching, Planet of the Rats

It’s Always Sunny in Philadelphia

One of TV’s most reliably irreverent comedies returns for an 18th season with a back-to-back two-parter that rings chaotic wedding bells for Frank (Danny DeVito) and his bizarre bride-to-be, Sam (Carol Kane). While Frank struggles with literal cold feet, his suspicious daughter Dee (High Potential‘s Kaitlin Olson) does everything in her power to stop the ceremony — until she and brother Dennis (Glenn Howerton) learn how much Sam is worth. The second episode depicts the fallout from the strangest “I do’s” in recent TV memory.

Furious

Some major OMG moments in a pivotal episode of the crime thriller, when FBI agent Alice (Emmy Rossum) follows a lead and ends up going undercover at the shelter where her target, unstable serial killer Catherine (Lola Petticrew), is hiding. They share a common purpose — taking down the billionaire who once sex-trafficked Catherine — but gaining this dangerous lady’s trust is going to be a tall order. It doesn’t help matters that Alice’s aggrieved ex, Marshall (Jake Lacy), is tracking her while she’s tracking Catherine.

Dancing With the Stars: The Next Pro

Emmy winner Witney Carson won her second Dancing with the Stars Mirrorball while partnered with Next Pro host Robert Irwin last season. They reunite when she joins the competition as mentor and guest judge, guiding the remaining dancers through one of the most essential and toughest challenges, reflecting a pro’s double duty as choreographer and teacher. Paired with Dancing superfans who’ve never danced ballroom, the contestants get just two days to prepare a routine and help their partner gain enough confidence to pull off a performance that will get them into the semifinals.

Futurama

When Professor Farnsworth begins showing signs of advanced Absent-minded Scientist Syndrome (you can figure out the acronym), his foggy memory leads him back in time to a rat-brain experiment that he abandoned many moons ago. Turns out those rats, left to their own devices in a maze, became smarter than the average human — or at least anyone you’re likely to meet in this animated sci-fi comedy. When the Futurama crew crash-lands on the planet of the rats, woe be to anyone who reveals the professor’s penchant for animal testing.

Jimmy Kimmel Live!

If there’s anyone who riles the president more than the vacationing late-night host Jimmy Kimmel, it’s Rosie O’Donnell, who relocated to Ireland to escape his reach and wrath. Which makes her guest-hosting stint this week, the first time she has appeared on the show in any context, must-see TV for fans of politically charged provocation.

INSIDE MONDAY TV:

• All American (8/7, The CW): Coop (Bre-Z), Layla (Greta Onieogou), KJ (Nathaniel Logan McIntyre), Breonna (Sasha Lance), and Khalil (Antonio J. Bell) organize a response to the ICE raid at South Crenshaw High.
• The 1% Club (8/7c, Fox): Former contestants return for a second chance at glory in the quiz show’s Season 2 finale. Followed by the season finale of The Quiz with Balls (9/8c).
• Little Singles (9/8c, TLC): The season finale depicts more hookups and emotional chaos at the group’s last party in Palm Springs.
• Game Day Murders (10/9c, Investigation Discovery): The true-crime series revisits the 2014 beating death of Dallas high school basketball player Troy Causey by his roommate.