Monday’s TV highlights: ‘David Cassidy: The Last Session’ and more

SERIES

Supergirl Kara, Mon-El and Alura (Melissa Benoist, Chris Wood and Erica Durance) are determined to put a stop to Serena’s (guest star Anjali Jay) villainous plans in a new episode of the superhero drama. 8 p.m. KTLA

So You Think You Can Dance Stephen “tWitch� Boss remains on hand as a guest judge to help Vanessa Hudgens, Nigel Lythgoe and Mary Murphy assess the would-be contestants as the auditions continue in Los Angeles. 8 p.m. Fox

Disney’s Fairy Tale Weddings This six-part series follows couples who have chosen to get hitched at one of the company’s theme parks. 8 p.m. Freeform

The Price of Duty Detectives speak candidly about the personal toll of working tough cases in this new true-crime series. 8 p.m. Oxygen

Whose Line Is It Anyway? Andrea Navedo (“Jane the Virgin�) joins the fun in this new episode of the improv-comedy sketch show. 9 p.m. KTLA

Dietland Plum (Joy Nash) suffers from withdrawal while Jennifer (Sandra W. Lee) goes on a rampage in this new episode of the drama. Julianna Margulies also stars. 9 p.m. AMC

Best Baker in America The four remaining bakers compete for the final three spots in this new episode. 9 p.m. Food Network

People Magazine Investigates: Cults A new installment recalls the 1975 Jonestown Massacre in Guyana. 9 p.m. Investigation Discovery

Drain the Oceans The new episode “Lost Worlds of the Mediterranean� explores the rise and fall of the Minoan, Greek, Carthaginian and Roman civilizations. 9 p.m. National Geographic Channel

Who Do You Think You Are? Former “Saturday Night Live� cast member Molly Shannon journeys to Ireland on a new episode of the celebrity genealogy series. 9 p.m. TLC

Man v. Food Host Casey Webb visits Savannah, then San Diego, in back-to-back episodes. 9 and 9:30 p.m. Travel Channel

Elementary Holmes and Watson (Jonny Lee Miller, Lucy Liu) track a serial killer following the death of someone close to them in a new episode of the detective drama. 10 p.m. CBS

Independent Lens The encore documentary “Forever Pure� looks at the controversy that was generated when two Muslim players joined Israel’s top soccer team. 10 p.m. KOCE

SPECIALS

David Cassidy: The Last Session The former teen heartthrob and costar of the musical 1970s sitcom “The Partridge Family� is seen and heard in this special that combines archival film with more recent footage for a four-part docu-series he’d started shooting before his death in 2017. 9 p.m. A&E

TALK SHOWS

CBS This Morning Author Jesse Itzler. (N) 7 a.m. KCBS

Today Chris Pratt and Jeff Goldblum; dancer Derek Hough. (N) 7 a.m. KNBC

KTLA Morning News (N) 7 a.m. KTLA

Good Morning America (N) 7 a.m. KABC

Good Day L.A. Stephen “tWitch� Boss and Allison Holker (“So You Think You Can Dance�); Winnie Sun (“The Wealth Whisperer�); Judge Lynn Toler (“Divorce Court�). (N) 7 a.m. KTTV

Megyn Kelly Today (N) 9 a.m. KNBC

Live With Kelly and Ryan Holly Hunter; Leslie Bibb; Melissa Benoist performs. (N) 9 a.m. KABC

The View Christopher Plummer. (N) 10 a.m. KABC

Steve Penn & Teller (“Fool Us�); Kevin O’Leary (“Shark Tank�). (N) 2 p.m. KNBC

The Ellen DeGeneres Show Howie Mandel (“America’s Got Talent�); Shaquille O’Neal (“Uncle Drew�); Oprah Winfrey. (N) 3 p.m. KNBC

Amanpour on PBS (N) 11 p.m. KVCR

The Daily Show With Trevor Noah (N) 11 p.m. Comedy Central

Conan Amanda Peet; MMA fighter Daniel Cormier. (N) 11 p.m. TBS

Amanpour on PBS (N) 11:30 p.m. KOCE

The Tonight Show Starring Jimmy Fallon Jim Parsons; Marlon Wayans; the Smashing Pumpkins perform. (N) 11:34 p.m. KNBC

The Late Late Show With James Corden Actress Hilary Duff; the Jaded Hearts Club performs. (N) 12:37 a.m. KCBS

Late Night With Seth Meyers Jake Tapper; Jane Krakowski; Devin Dawson performs; Brian Frasier-Moore performs. (N) 12:37 a.m. KNBC

SPORTS

Baseball The Angels visit the Seattle Mariners. 7 p.m. FSN

For more sports on TV, see the Sports section.