The 2.5-mile route of New York's annual Thanksgiving Day Parade starts outside the American Museum of Natural History in New York, then heads south through Manhattan. More than 3.5 million people will line the streets, and tens of millions more will watch from home. "Entertainment Tonight" co-host Kevin Frazier and "The Insider" correspondent Keltie Knight joins "CBS This Morning" to preview the 90th annual parade.
