'HEROES REBORN' PREQUEL Before NBC's fall lineup restarts its 2000s tale of suddenly superpowered humans, catch up with the "Heroes Reborn: Dark Matters" app. It offers six episodes bridging the years between the two series, reminding us what the "Heroes" universe is all about (with clips from its four seasons), while introducing fall's new generation of "evolved humans." More to explore at Apple's App Store, Google Play or nbc.com/heroes

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'GREASE' SINGALONG You're the one that they want to vocalize alongside stars John Travolta and Olivia Newton-John of the '50s-set 1978 musical fave "Grease." Turner Classic Movies brings it back to theaters for mass singing Aug. 16 and 19. Locations, tickets at fathomevents.com

CINEMATIC NEW YORK CITY The city's role as movie backdrop powers the TCM Classic Film Tour. The three-hour bus tour ($41, available Saturdays, Tuesdays, Thursdays) highlights settings from "King Kong" to "Breakfast at Tiffany's" to "Ghostbusters," making narrated stops around town. Info, bookings at tcm.com/tours