UPDATED: The weekend highlights range from preseason football to teen favorites, movie classics and a zombie preview.
If you're a "Walking Dead" fan, AMC wants to tantalize you this weekend. Chris Hardwick hosts "Talking Dead Season 6 Preview Special" about the upcoming season at 8 p.m. Sunday. The zombie apocalypse extends to "Fear the Walking Dead," the spinoff series that debuts Aug. 23.
WUCF-Channel 24 repeats "Downton Abbey Rediscovered" at 7 p.m. Sunday. The special celebrates five seasons of the British drama and previews the sixth and final season, which starts Jan. 3. Series creator Julian Fellowes and cast members discuss the family saga, PBS' biggest dramatic hit ever.
Teen Choice 2015 at 8 p.m. Sunday on Fox will offer performances by Flo Rida (with Robin Thicke) on "I Don't Like It, I Love It" and Rachel Platten on "Fight Song." Also performing will be Little Mix, 5 Seconds of Summer and Jussie Smollett and Bryshere "Yazz" Gray ("Empire"). Fox will use the event to promote new series. There will be appearances by Emma Roberts, Lea Michele and Keke Palmer of "Scream Queens," John Stamos of "Grandfathered" and Wilmer Valderrama of "Minority Report."
The starry Teen Choice lineup also includes Britney Spears, Ellen DeGeneres, Cat Deeley ("So You Think You Can Dance"), Chloe Grace Moretz, Fifth Harmony, Sarah Hyland, Bella Thorne, Scott Eastwood, R5, Stephen Curry, Nina Dobrev ("The Vampire Diaries"), Janel Parrish and Lucy Hale ("Pretty Little Liars"), Skylar Astin ("Pitch Perfect"), Terry Crews ("Brooklyn Nine-Nine"), Rita Ora, and Vin Diesel, Tyrese Gibson and Jordana Brewster ("Furious 7"). The hosts are Ludacris, Gina Rodriguez and Josh Peck.
NBC offers "Ed Sheeran -- Live at Wembley Stadium" at 8 p.m. Sunday. Fans get to see him in concert at London's Wembley Stadium and hear his biggest hits, including "The A Team" and "Thinking Out Loud." Elton John joins Sheeran for what NBC bills as "a one-of-a-kind duet."
The weekend's prestige project is HBO's "Show Me a Hero," a six-part miniseries. The production debuts at 8 p.m. Sunday and will air in two-part charts over three consecutive Sundays. Leading the cast are Oscar Isaac ("Inside Llewyn Davis"), Catherine Keener, Alfred Molina, Jon Bernthal and Winona Ryder. But the most crucial names are executive producers David Simon (HBO's "Treme" and "The Wire") and Paul Haggis ("Crash"). They oversaw this adaptation of a nonfiction book by Lisa Belkin about race and community in Yonkers, NY.
"I Am Cait" presents Khloe Kardashian confronting Caitlyn Jenner at 8 p.m. Sunday on E! "We want to support you and be there for you," Khloe says. "But, we don't think that that entails you speaking negatively about my mom [Kris Jenner]." Khloe adds: "In our opinion, you don't even need to mention my mom. ... Let's not drag my mom through the mud." No, let others do that. You, viewer, have been warned.
If you prefer more lighthearted reality, there's "Big Brother" at 8 p.m. Sunday on CBS. Shelli and Jackie were ejected in a double eviction Thursday. Vanessa, who dodged elimination, may be stronger than ever.
The NFL will likely have the most viewers this weekend, because the NFL is the biggest show in television. The Pittsburgh Steelers are at the Jacksonville Jaguars at 7:30 p.m. Friday (today) on WKMG-Channel 6. The Tampa Bay Bucs are at the Minnesota Vikings at 8 p.m. Saturday on WFTV-Channel 9.
"Real Time With Bill Maher" will be new at 10 p.m. Friday on HBO with a repeat at 11 p.m. The interview guests are Sister Helen Prejean, who's a criminal justice activist, and Talib Kweli, the musician and civil rights activist. The panel will be former Gov. Jennifer Granholm, D-Mich.; retired U.S. Army Col. Lawrence Wilkerson, and Doug Heye, former communications director of the Republican National Committee.
TCM continues its Summer Under the Stars festival, which honors a performer each day. Groucho Marx is saluted Friday (today), and that means a string of Marx Brothers classics. The lineup includes "Monkey Business" at 8 p.m., "Horse Feathers" at 9:30 p.m., "Duck Soup" at 10:45 p.m., "A Night at the Opera" at midnight and "A Day at the Races" at 2 a.m. Saturday. "Duck Soup" is probably the best, and it was a box-office bomb in 1933. Keep that in mind when you read the weekly box-office report.
Douglas Fairbanks Jr. is honored Saturday. The goodies include "Gunga Din" at 4 p.m. and the 1937 version of "The Prisoner of Zenda" at 8 p.m. Fairbanks is spectacular in the latter movie.