On today's What to Watch: Riverdale's season 6 premiere kicks off a five-part event that sets up an appearance by Sabrina Spellman; the Bachelorette and her remaining men go to her hometown of Minneapolis; and The Flash season premiere welcomes their latest foe, Despero. What to Watch editor Joshua Heller tells us about the Australian animated kids series Bluey, available on Disney+. Plus, entertainment headlines — including Mel Gibson's plans to direct the next Lethal Weapon movie, and a Blossom reunion on Call Me Kat — and trivia.

More at ew.com, ew.com/wtw, and @EW.

Host: Gerrad Hall (@gerradhall); Editor/Producer: Joshua Heller (@joshuaheller); Writer: Tyler Aquilina (@tyler_aquilina); Executive Producer: Shana Naomi Krochmal (@shananaomi).

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