Big BroSummer camp is the theme for the 21st season of “Big Brother” (CBS, 8 p.m.), which begins a two-night premiere. Sixteen new houseguests get shut in their A-frame styled cabin lodge, where the Head of Household room doubles as an (indoor) treehouse.

Julie Chen Moonves returns to host the residency which eventually play Wednesdays, Thursdays and Sundays with a $500,000 prize for the one left standing. A new twist is expected to force the houseguests to rethink how they play the game. “Big Brother After Dark” won’t start until Wednesday nights.

The 30th anniversary of the movement is recalled in “Tiananmen: The People Versus the Party” (PBS, 9 p.m., check local listings).

“Mike Epps: Only One Mike” (Netflix, streaming) is a new standup comedy special, filmed in D.C.

“Drunk History” (Comedy Central, 10 p.m.) takes on some musical stories, about Lead Belly, John Lennon and Sam Cooke.

Che Guevara pops up on “Alternatino with Arturo Castro” (Comedy Central, 10:30 p.m.).

On “The Detour” (TBS, 10:30 p.m.), the family goes back to their hometown.

Auditions continue for “America’s Got Talent” (NBC, 8 p.m.).

“Black Ink Chicago” (VH1, 8 p.m.) goes to Miami.

Davia juggles the men in her life on “Good Trouble” (Freeform, 8 p.m.).

On “Animal Kingdom” (TNT, 9 p.m.), Angela’s spot in the house is in jeopardy.

An Arctic superstorm intensifies on “Deadliest Catch” (Discovery, 9 p.m.).

“Chopped Junior” (Food, 9 p.m.) begins an eighth season with smoothies.

It’s probably misleading to have a drama called “Games People Play” (BET, 9 p.m.) among all the network game shows.

Tonight’s installment of “Yellowstone Live” (National Geographic, 9 p.m.) looks at the elk.

Murphy has an offer for Emori on “The 100” (CW, 9 p.m.).

“The Real Housewives of Beverly Hills” (Bravo, 9 p.m.) have to fix bridges before they leave France.

Danny and Lexi are stuck in Casablanca on “Blood & Treasure” (CBS, 10 p.m.).

The future of Salt N Pepa are discussed on “Ladies Night” (BET, 10 p.m.).

A fatal mishap rattles “Pose” (FX, 10 p.m.).

“Sweet Home Sextuplets” (TLC, 10 p.m.) celebrates Valentine’s Day.

It’s Independence Day on “Texicanas” (Bravo, 10:30 p.m.).

Melissa judges a hushpuppy cooking competition on “The Radkes” (USA, 10:30 p.m.).

Leonard Maltin dips once more into the Treasures from the Disney Vault on Turner Classic Movies with “The Moon-Spinners” (8 p.m.), “The Littlest Horse Thieves” (10:25 p.m.), “The North Avenue Irregulars” (12:30 a.m.), “Emil and the Detectives” (2:15 a.m.) and “Never a Dull Moment” (4 a.m.). Plus the cartoons ”The Bone Bandit” (10:15 p.m.) and “The Robber Kitten” (12”15 a.m.).

During the day, millionaire playboys abound, first in Vegas and then in Mexico with “Dancing Lady” (6:15 a.m.), “Sky Full of Moon” (8 a.m.), “Painting the Clouds with Sunshine” (9:30 a.m.), “The Las Vegas Story” (11:15 a.m.), “Ocean’s Eleven” (1 p.m.), “Crashing Las Vegas” (3:15 p.m.), “Mystery in Mexico” (4:30 p.m.) and “Honeymoon” (5:45 p.m.).

Baseball includes Mets at Philadelphia (MLB, 7 p.m.) and Colorado at San Francisco (ESPN, 9:45 p.m.).

The Women’s soccer world cup continues with Italy vs. China (Fox Sports 1, noon) and Netherlands at Japan (Fox Sports 1, 3 p.m.).

The WNBA has Minnesota at Indiana (CBS Sports, 7 p.m.).

The college baseball world series has Vanderbilt vs. Michigan (ESPN, 7 p.m.) in game 2.

The men’s soccer Africa Cup of Nations has Cameroon vs. Guinea-Bissau (beIn, 1 p.m.) and Benin vs. Ghana (beIn Sports, 4 p.m.). The Concacaf Gold Cup has Jamaica vs. Curacao (Fox Sports 1, 8 p.m.) and Honduras vs. El Salvador (Fox Sports 1, 10:30 p.m.).

Daytime Talk

Kelly Ripa and Ryan Seacrest: Brie Larson, Robin Givens, Nina Dobrev, Max Frost. The View: Seth MacFarlane, Art Smith and Adrian De Berardinis. The Talk: Sherri Sheperd, Gabriel Iglesias. Ellen DeGeneres: Billie Ellish, Sean “Diddy” Combs, Jennifer Lopez, Pink (rerun). Wendy Williams: Gizelle Bryant (rerun). The Real: Wyclef Jean (rerun).

Late Talk

Stephen Colbert: Zendaya, Julian Edelman, Jenny Lewis. Jimmy Kimmel: Kumail Nanjiani, Jim Acosta, Himesh Patel (rerun). Jimmy Fallon: Trevor Noah, Sebastian Maniscalco, Penn & Teller. Seth Meyers: Tom Holland, Jenny Slate, SOAK, Jon Wurster. James Corden: Bill Hader, Anna Chlumsky, Ally Brooke with Tyga (rerun). Trevor Noah: Olivia Munn. Conan O’Brien: Kathy Bates (rerun).