Mark Rober

Elmo, Abby, Cookie Monster and Grover create one-of-a-kind holiday gifts with engineer and inventor Mark Rober in his top-secret CrunchLabs workshop.

No ropes. No fear. Free solo legend Alex Honnold risks it all in a high-stakes, live ascent of one of the world's tallest skyscrapers in Taipei, Taiwan.

Shaq is back and on a mission to determine what shark has the perfect predatory attack. Shaq and his friends Dude Perfect and Mark Rober will put various species to the test to uncover the most mind-blowing hunting techniques of this ultimate predator.