TV TOP PICKS

7 p.m. on CBS

S.W.A.T.

In the turbulent aftermath of his decision to speak candidly to the press, Hondo (Shemar Moore, pictured) retreats to a quiet town in Mexico to spend time in reflection as this crime drama opens Season 5 with “Vagabundo.” Specifically, he needs time to reassess his life and what his professional future may hold. Unfortunately, he reluctantly finds himself drawn into a local family’s fight to win justice. Val Dorantes, Timothy V. Murphy and Jose-Maria Aguila guest star; Alex Russell, Jay Harrington and Lina Esco also star.

8 p.m. on CBS

Magnum P.I.

Handling jobs solo while Higgins (Perdita Weeks) is abroad and trying to keep his new relationship a secret, Magnum (Jay Hernandez) takes on the case of a missing single mother who is being hunted by two very sinister gangs in the Season 4 premiere “Island Vibes.” Meanwhile, Higgins makes a misstep that forces her to assist an old employer, and Rick (Zachary Knighton) gets some decidedly mixed news. Stephen Hill, Tim Kang and Amy Hill star.

8 p.m. on AMC

Eli Roth’s History of Horror Whatever the genre, most follow-ups to hit films inevitably fall short of the original, but there are exceptions to that rule. As this docuseries returns for Season 3 with a premiere called “Sequels That Don’t Suck,” host Eli Roth talks with filmmakers, actors and fans about horror sequels that in some respects they find are as good as or even better than the original. Among the films considered are Nightmare on Elm Street 3 and Bride of Chucky.

9 p.m. on CBS

Blue Bloods

Frank (Tom Selleck) clashes with the mayor (Dylan Walsh) over the best way to protect the city from an uptick in crime following a high-profile shooting, while Danny (Donnie Wahlberg) consults psychic medium Maggie Gibson (recurring guest star Callie Thorne) to solve a young boy’s murder in the Season 12 premiere, “Hate Is Hate.” Meanwhile, Erin (Bridget Moynahan) investigates a decades-old case in which the chief eyewitness was her boss, D.A. Kimberly Crawford (guest star Roslyn Ruff), who was only 13 at the time.