Henry Winkler, who played the iconic Fonzie on the hit TV show “Happy Days,” joined Kathie Lee Gifford and Hoda Kotb to talk about how he suffered from dyslexia as a child but didn’t know it. He used his childhood challenges to create the “Hank Zipzer” book series, now a TV series on Universal Kids. He also just released his 10th book, “Hooray! My Butt Left the Bench.”