Penn & Teller: Fool Us Magicians Dyno Staats, Aiden Sinclair, Axel Adler and David Parr try to win a spot in Penn & Teller’s Las Vegas act by stumping the duo on how their illusions are accomplished. Alyson Hannigan is the host. 8 p.m. KTLA Boy Band Though the nine remaining contestants are male, all of the performed songs originally were made popular by female artists. Emma Bunton, Nick Carter and Timbaland will decide who goes on to the next round. 8 p.m. ABC Project Runway The new season doesn’t start until next week, but fans can get a preview of some of the designers competing, along with some who don’t make the cut. With Tim Gunn. 8 p.m. Lifetime Saturday Night Live: Weekend Update Summer Edition Colin Jost and Michael Che anchor this four-episode half-hour series featuring “Saturday Night Live” cast members and their unique take on the news. 9 p.m. NBC Nashville Juliette and Maddie’s (Hayden Panettiere, Lennon Stella) conflict comes to a head in the season finale of the country music series. Clare Bowen and Sam Palladio also star. 9 p.m. CMT First in Human In this new documentary series, Emmy-winning filmmaker John Hoffman secures unprecedented access to the largest hospital in the world devoted solely to research. Jim Parsons (“The Big Bang Theory”) narrates. 9 p.m. Discovery Zoo Jackson (James Wolk) and some of his cohorts try to safely retrieve Isaac (guest star Jesse Muhoozi), the son of Abraham and Daniela (Nonso Anozie, Alyssa Diaz). Meanwhile, Mitch and Jamie (Billy Burke, Kristen Connolly) cross paths with someone they know in California. Josh Salatin and Gracie Dzienny also star. 10 p.m. CBS The Night Shift The staff members mourn one of their own at a funeral, but a melee at the ceremony puts them right back to work. With Brendan Fehr, Jill Flint, Eoin Macken, Scott Wolf, Robert Bailey Jr. and guest star Dan Lauria (“The Wonder Years”). 10 p.m. NBC The Guest Book A woman (Michaela Watkins) struggling to cope with her husband’s weekend retreat with his boss (David Zayas) and his much younger wife finds relief by helping a woman (Stephnie Weir) who is f leeing a polygamous marriage. Kellie Martin, Charlie Robinson and Aloma Wright also star in this new episode of the quirky comedy. 10:30 p.m. TBS
The Story of Diana This two-part documentary recalling the life of Princess Diana concludes. 9 p.m. ABC
Marley (2012) 8 a.m. AXS Hail, Caesar! (2016) 8 a.m.
Cinemax The Stanford Prison Experiment (2015) 12:35 p.m. Showtime Z for Zachariah (2015) 12:45
p.m. EPIX Steve McQueen: The Man & Le Mans (2015) 3:15 p.m. TMC
CBS This Morning (N) 7 a.m. KCBS Today Naomi Watts; Nate Schoemer and Laura London. (N) 7 a.m. KNBC KTLA Morning News (N) 7 a.m. KTLA Good Morning America Christopher Meloni; Macklemore performs. (N) 7 a.m. KABC Good Day L.A. Carl Weathers; Big Boy; Becky Lynch, WWE Summer Slam; Jonny Lang performs. (N) 7 a.m. KTTV Live with Kelly and Ryan Anthony Anderson (“To Tell the Truth”); Bebe Rexha performs; Randy Jackson. (N) 9 a.m. KABC Charlie Rose (N) 11 p.m. KVCR; 12:30 a.m. KOCE; 1 a.m. KLCS The Daily Show With Trevor Noah Trevor analyzes the state of news media with a look at recent shakeups. (N) 11 p.m. Comedy Central Conan Bryan Cranston; Sebastian Maniscalco. (N) 11 p.m. TBS The Tonight Show Starring Jimmy Fallon Anthony Anderson; radio host Terry Gross; Kesha. (N) 11:34 p.m. KNBC The Late Show With Stephen Colbert Millie Bobby Brown; Jim Jefferies; Zeshan B performs. (N) 11:35 p.m. KCBS Jimmy Kimmel Live John Lithgow; Jay Baruchel; Diana Krall performs. (N) 11:35 p.m. KABC Tavis Smiley Carl and Rob
Reiner. midnight KOCE Late Night Howie Mandel; Tammy Duckworth; Aaron Schatz; Venzella Joy performs. (N) 12:37 a.m. KNBC Nightline (N) 12:37 a.m.
KABC The Late Late Show With James Corden Aubrey Plaza; Jeremy Renner; Chris O’Dowd; Russ performs. (N) 1:07 a.m. KCBS
For today’s sports on TV, see the Sports section.
“SNL: WEEKEND Update Summer Edition” features co-anchors Colin Jost, left, and Michael Che.