Lady Gaga and Tony Bennett perform together One Last Time

What To Watch

On this weekend's What to Watch: Tony Bennett performs his final concert in One Last Time: An Evening with Tony Bennett and Lady Gaga; Helen Mirren hosts the Harry Potter competition series Hogwarts Tournament of Houses; Daniel Dae Kim and Tony Goldwyn star in The Hot Zone: Anthrax; Nicki Minaj steps into Andy Cohen's shoes to moderate the final part of the Real Housewives of Potomac reunion; and Jimmy Fallon's children's book 5 Sleep 'Til Christmas is adapted into its own animated special. The Great Christmas Light Fight host Taniya Nayak tells us what she's watching. Plus, our Soundbite of the Week, and trivia.

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

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

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