“Undiscovered: Finding Amelia” (Discovery+, streaming) puts force a theory on the disappearance of 1930s pilot Amelia Earhart. 

A winner is named on the third season finale of the voguing competition, “Legendary” (HBO Max, streaming).

Gay comics are showcased in the standup special “Stand Out: An LGBTQ+ Celebration” (Netflix, streaming)  . Taped at the Netflix is a Joke festival earlier this spring, its stars include Eddie Izzard, Margaret Cho, Sandra Bernhard, Tig Notaro and Wanda Sykes.   

Margaret Cho also pops up to narrate stories about Leonardo da Vinci, Michelangelo, Ma Rainey, Alan Turing, Lynn Conway and Sally Ride on tonight’s “The Book of Queer” (Discovery+, steaming). 

“Walker” (CW, 8 p.m.) makes a shocking discovery (that its network doesn’t care about Jan. 6 either?)

It’s the second to last episode of “Legacies” (CW, 9 p.m.). 

“Southern Charm” (Bravo, 9 p.m.) begins its reunion episodes. 

“Roadrunner: A Film About Anthony Bourdain” (HBO Max, streaming) makes its streaming debut. 

Big lizards bite the “Kings of Pain” (History, 10:35 p.m.).

A third season begins for “American Gangster: Trap Queens” (BET+, streaming), narrated by Lil’ Kim. 

The rapper known as Da Brat and her girlfriend Jessica “Judy” Dupart returns for a second season of the reality series “Brat Loves Judy” (WEtv, 9 p.m.).

“Rat in the Kitchen” (TBS, 9 p.m.) sabotages the vegetarian dishes. 

Kids compete with Duluth Park on “Mystic” (UPtv, 9 p.m.).

“Heartland” (UPtv, 8 p.m.) suffers a break-in. 

Winter draws near on “Alone” (History, 9 p.m.).

On “MasterChef: Junior Edition” (Fox, 8 p.m.), the three remaining young chefs compete in front of a live audience on the semi-finals, and are also visited by loved ones.

Twenty One Pilots play a new “Unplugged” (MTV, 9 p.m.). 

“Full Frontal with Samantha Bee” (TBS, 10 p.m.) has a new episode. 

Mac is wary of married again on “Commit or Quit with Judge Lynn Tyler” (WEtv, 10 p.m.). 

The Thursday night series of revisionist Westerns on Turner Classic Movies continues with four from Sam Peckinpah, “Ride the High Country” (8 p.m.), “The Ballad of Cable Hogue” (9:45 p.m.), “The Wild Bunch” (midnight) and “Pat Garrett and Billy the Kid” (2:45 a.m.). 

During the day are films set in nightclubs: “Broadway Hostess” (6:30 a.m.), “Night Spot” (7:45 a.m.), “Panama Hattie” (9 a.m.), “Stage Struck” (10:30 a.m.), “Manpower” (11:45 a.m.), “Illegal” (1:30 p.m.), “Garden of the Moon” (2:45 p.m.), “This Could Be the Night” (4:30 p.m.) and “The Shining Hour” (6:30 p.m.). 

Stanley Cup Playoffs have Tampa Bay at Rangers (ESPN, 8 p.m.) in Game 5. 

The Women’s College World Series has Texas vs. Oklahoma (ESPN, 8:30 p.m.) in Game 2. 

It’s Day 2 in track and field’s Outdoor Championships Day (ESPNU, 8:30 p.m.) 

Daytime Talk

Kelly Ripa and Ryan Seacrest: Simu Liu, math champ Allan Yuan, Chef Juan Pablo Loza, Deja Vu. The View: Miguel Cardona, LeVar Burton. Ellen DeGeneres: Brandi Carlile (rerun). Drew Barrymore: Gayle King, Taye Diggs (rerun). Kelly Clarkson: Chris Pratt, Bryce Dallas Howard, Jeff Goldblum, DeWanda Wise, Mamoudou Athe, Brad Meltzer. Wendy Williams: Mama June, Michael Rapaport. 

Late Talk

Stephen Colbert: Simu Liu. Jimmy Kimmel: Andy Garcia, Betty Gilpin, Angel Olsen (rerun). Jimmy Fallon: Demi Lovato, Jay Pharoah. Seth Meyers: Jeff Goldblum, D’Arcy Carden, Joe Russo. James Corden: Rain Wilson, Adria Arjona, Mark Owen. Trevor Noah: Michael R. Jackson.