But first...the Big Brother season 24 premiere

On today's What to Watch: Sixteen new contestants enter the house for season 24 of Big Brother, where $750,000 is on the line — host Julie Chen Moonves gives us some intel on the premiere and next week's first eviction. Past contestants from Big Brother, as well as Survivor, The Amazing Race, and Love Island, compete on the new series The Challenge: USA. The international Netflix series Control Z is back for its third season, picking up in the aftermath of their high school principal falling to her death — and the hacker targets the group of teens one last time. The Great American Recipe host Alejandra Ramos tells us what she's watching. Plus, entertainment headlines — including Stranger Things star Jamie Campbell Bower on the scrapped Game of Thrones prequel series he was part of, why American Idol winner Caleb Johnson thought his first single was 'utter crap,' Wendy Williams' Instagram and YouTube accounts wiped, and a Beauty and the Beast anniversary special — and trivia. More at ew.com, ew.com/wtw, and @EW. Host/Producer: Gerrad Hall (@gerradhall); Producer: Ashley Boucher (@ashleybreports); Editor: Lauren Klein (@ltklein); Writer: Calie Schepp; Executive Producer: Chanelle Johnson (@chanelleberlin). Learn more about your ad choices. Visit podcastchoices.com/adchoices