INDIANAPOLIS (WRTV) —Disney Entertainment Television is marking America's 250th birthday with a 24-hour multi-platform broadcast — and Indianapolis viewers can catch it right here on WRTV. “Disney Celebrates America” kicks off Friday, July 3, at 10 p.m. local time and runs through Saturday, July 4. “World News Tonight” anchor David Muir will lead coverage across all 50 states, highlighting the landscapes, cultures and pivotal moments that have shaped the nation over 250 years.