What To Watch: Greatest Hits Finale, Olympics Preview, Sex&Drugs And More

Ariana Grande in concert at the Barclay Center, New York, America - 27 Sep 2015

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On TV this Thursday: Ariana Grande and Celine Dion help close out Greatest Hits, Bob Costas previews the Rio Summer Olympics and a new ~~ampersand~~ talent is discovered on Sex&Drugs&Rock&Roll. Here are 10 programs to keep on your radar:

Showtimes for August 4, 2016

8:00 PM ET

BattleBots

ABC

YouTube personality Michael Stevens (aka Vsauce) serves as guest judge when 16 teams continue to battle in hopes of reaching the championship.

DC's Legends of Tomorrow

The CW

Repeat to Revisit: Jonah Hex assists Rip and his fellow time-travelers when they hide out in the Old West. (Who's bringing the Legion of Doom to Season 2?)

Home Free

Fox

Season 2 finale (2 hours): The final two contestants compete to win the dream home for their personal heroes. (Not yet renewed.)

Rio Olympics Preview Special

NBC

Bob Costas introduces viewers to the host city and chronicles the journeys of Michael Phelps, Katie Ledecky, Karri Walsh Jennings and Usain Bolt.

9:00 PM ET

Big Brother

CBS

"Another house guest is evicted." Exciting stuff! (More exciting? Season 19 is coming this fall... to CBS All Access.)

Greatest Hits

ABC

Season 1 finale (2 hours): Celine Dion, Adam Lambert, Nelly, En Vogue, John Legend, New Edition, Richard Mark, Colin Hay, Sheryl Crow, Smash Mouth, Hunter Hayes and Flo Rida perform live from the Microsoft Theatre. Plus, a Whitney Houston tribute by Ariana Grande. (Not yet renewed.)

10:00 PM ET

Code Black

CBS

Repeat to Revisit: In the series premiere, Dr. Leanne Rorish leads a crop of first-year residents through their first night in the ER — some of whom will have disappeared by Season 2!

Queen of the South

USA Network

Teresa is tasked with a potentially deadly midnight mission; Brenda puts her crew in danger.

Ripper Street

BBC America

Drake and Special Branch investigate the murder of an Indian-born lawman.

Sex&Drugs&Rock&Roll

Johnny discovers a new talent when the band meets an enthusiastic young fan; Rehab and Bam notice a different side of Campbell.