NEW YORK, July 18 (UPI) -- Shark Week -- the annual summertime celebration of the toothy sea creatures -- kicks off Sunday on Discovery and Discovery+. The programming block contains nearly two dozen new documentaries. Highlights include: Sunday, July 20 Dancing with Sharks -- 8 p.m. EDT/PDT Hosted by Tom Bergeron and Kinga Philipps, this competition show challenges five divers to create movement routines with hammerheads, tigers and nurse sharks. "It's some of the world's best shark handlers,