American Idol stages big reunion, The CW cancels two shows

On today's What to Watch: The cast of That 70s Show will be reprising their roles as guest stars on Netflix's upcoming spin-off series, That 90s Show. American Idol is also staging a reunion for its 20th-anniversary celebration, welcoming back past winners and contestants, as well as original judges Paula Abdul and Randy Jackson. Season 1 of The Endgame is wrapping up, with the action picking up in the aftermath of Elena being buried alive and Val is caught up in drama with the president, whose crimes Val is trying to expose. And Shark Tank airs on a special night, with entrepreneurs trying to sell Mark, Robert, Kevin, Barbara, and Lori on wellness products and a new way of eating Korean-style food. Plus, entertainment headlines — including three show cancellations at the CW, two in the DC universe, and John Stamos' super new role — This Week in Entertainment History, and trivia. More at ew.com, ew.com/wtw, and @EW. Host/Producer: Gerrad Hall (@gerradhall); Producer: Ashley Boucher (@ashleybreports); Editor/Producer: Joshua Heller (@joshuaheller); Writers: Tyler Aquilina (@tyler_aquilina) and Calie Schepp; Executive Producer: Chanelle Johnson (@chanelleberlin). Learn more about your ad choices. Visit megaphone.fm/adchoices