In this week's Sunday Sitdown, Henry Winkler joins Willie Geist at Katz' bustling deli in New York for a discussion about his new memoir, "Being Henry: The Fonz… and Beyond," in which he gets candid about his difficult childhood, his charmed career and his defining role in "Happy Days." One morning about 15 years ago, United States Vietnam veteran Ric Ryan pledged 25 cents for every friendly wave he got on his long daily walks to Operation Mend, which provides free, lifesaving care to America's wounded veterans. Ric's pledge has reached over a couple of a hundred thousand dollars and counting. NBC's Harry Smith caught up with the vet in this week's Sunday Spotlight. The FDA has approved Zepbound, the latest in a growing number of drugs that are revolutionizing weight loss as America faces an epidemic of obesity. Will insurance companies begin to cover the cost and are doctors sure they are safe? NBC's Liz Kreutz reports in this week's Sunday Focus. Cody Dorman, a boy with Wolf-Hirschhorn syndrome, has died one day after his namesake horse, Cody's Wish, made a miraculous victory at the Breeders' Cup. Dorman was 12 years old when the Make-A-Wish Foundation introduced him to the horse that he would form a special bond with. Sunday TODAY's Willie Geist remember a life well lived.