Watch The Happiest Toddler on the Block (2004) : Full Movie Online Free In "The Happiest Toddler", Dr. Harvey Karp, noted pediatrician and child development expert, reveals a totally new and extraordinarily effective way to communicate with our "uncivilized" little toddlers. For the past 30 years, Dr. Karp has taught his remarkable techniques to thousands of parents from working moms to superstars like Madonna! And now, America's top doctors are lining up to praise this revolutionary new approach that will change parenting forever!