On today's What to Watch: To All the Boys I've Loved Before spinoff series XO, Kitty debuts, centering on Lara Jean's little sister Kitty as she chases down true love. On the season finale of Mrs. Davis, Simone knows what she has to do to destroy the Holy Grail. Meredith is back on the season finale of Grey's Anatomy. Plus, Hollywood trivia, and entertainment headlines, including renewals of Virgin River and Georgia & Ginny, and Jason Momoa to host Discovery's Shark Week. More at ew.com, ew.com/wtw, and @EW on Twitter and @EntertainmentWeekly everywhere else. Host/Writer/Producer: Gerrad Hall (@gerradhall); Producer/Writer: Ashley Boucher (@ashleybreports); Editor: Samee Junio (@it_your_sam); Writer: Calie Schepp; Executive Producer: Chanelle Johnson (@chanelleberlin).

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