‘Watchmen,’ ‘Looking for Alaska,’ ‘Letterkenny’ and everything else you don’t want to miss on TV this week.

ONE CHICAGO — Pictured: “One Chicago” Key Art — (Photo by: NBCUniversal)

Looking For Alaska is an 8-episode limited series based on the John Green novel of the same name. It centers around teenager Miles ÒPudgeÓ Halter (Charlie Plummer), as he enrolls in boarding school to try to gain a deeper perspective on life. He falls in love with Alaska Young (Kristine Froseth), and finds a group of loyal friends. But after an unexpected tragedy, Miles and his close friends attempt to make sense of what theyÕve been through. Alaska Young. Miles (Charlie Plummer) and Alaska (Kristine Froseth), shown. (Photo by: Alfonso Bresciani)

Patsy & Loretta is based on the untold true story of the friendship between two of country music’s greatest icons, Patsy Cline (Megan Hilty) and Loretta Lynn (Jessie Mueller). When they first met, Patsy was already one of the biggest stars in country music while Loretta was just a coal miner’s daughter, starting off with little to her name but a $17 guitar. Instead of seeing Loretta as competition, Patsy took Loretta under her wings to help her make it in Nashville. Soon, they became close friends, touring together, bonding over their husband troubles and commiserating on being females in the male-dominated music business. Then in 1963, the country music community was struck with a tragedy when at just age 30, Patsy died in a plane crash. Despite the devasting loss of her friend, Loretta continued on in the industry and is today, known as the First Lady of Country Music. To this day, Loretta remains grateful to Patsy for her mentorship and above all, friendship, as the country music trailblazer that paved the way for Loretta

MONDAY

Letterkenny: The entire seventh season drops today. I have to admit, I haven’t watched this series, but it’s my best friends’ favorite show so I probably should get around to it. And for those of you who are fans, I KNOW. STOP YELLING AT ME. I get yelled at about this show plenty, trust. Hulu

Desus & Mero: The talk show is back. 10 p.m., Showtime

The Terror: Infamy: Amy and Yamato-san struggle to assimilate in the finale. 8 p.m., AMC

TUESDAY

Arrow: Oliver returns to Starling City in the final season premiere. 8 p.m., The CW

The Purge: Four characters navigate the aftermath of the Purge. Season two premiere. 8 p.m., USA

Treadstone: Set in the Bourne universe, agents around the world “wake up” to resume deadly missions. Series premiere. 9 p.m., USA

Battle of the Fittest Couples: I mean, I don’t know any of the people involved, but the title of this show suggests to me that they are EXHAUSTING. Series premiere. 10 p.m., Paramount

WEDNESDAY

Chicago series crossover event: A deadly bacteria forces the city’s first responders to act together alongside the CDC to contain the threat. Fun fact! It’s a Walking Dead prequel! (It is not.) 7 p.m., NBC

Ghosts of Sugar Land: A documentary about a group of Muslim Americans living in Sugar Land, Texas who speculate on the disappearance of their friend, whom they worry joined ISIS. Netflix

Limetown: Jessica Biel stars as a podcaster who tries to unravel the mysterious disappearance of some 300 people from a medical facility. Series premiere. Facebook 

THURSDAY

BookTube: Like a book club! But on TV! And with 100% less Oprah! Series premiere. YouTube

Liberty: Mother of Exiles: A documentary about the Statue of Liberty in a year when this administration would very much like to undo everything she stands for.  7 p.m., HBO

FRIDAY

Wounds: Armie Hammer, Zazie Beetz, and Dakota Johnson star in this demonic horror film that features lots of cockroaches for some reason. Hulu

Looking for Alaska: A tragedy makes a young man and his friends question a tragedy they’ve all suffered. Based on the John Green novel of the same name. Series premiere. Hulu

Modern Love: This anthology series is based on The New York Times column and stars everyone from Anne Hathaway to Tina Fey to John Slattery. Series premiere. Amazon

Tell Me Who I Am: In this documentary, a man loses his memory after an accident and his twin brother helps him piece together his past. Except! It’s all LIES. Netflix

The Laundromat: Meryl Streep is a woman who gets swindled by Gary Oldman and Antonio Banderas and everyone seems to be having a very good time.
Netflix

SATURDAY

Patsy & Loretta: The true story of the friendship between Patsy Cline and Loretta Lynn as portrayed by women who look nothing like them. 7 p.m., Lifetime

Glass: THE TRILOGY IS COMPLETE. 7 p.m., HBO

SUNDAY

Watchmen: Regina King plays a badass vigilante taking down white supremacists while living in The Watchmen universe. Series premiere. 8 p.m., HBO

Halloween marathon: Just a whole bunch of Halloween movies, including the most recent. Begins 7:45 a.m., IFC

The Simpsons: “Treehouse of Horror XXX”! 7 p.m., Fox