The only non-NASA honoree of the prestigious 'Ambassador of Exploration' award, Walter Cronkite reported several important events, such as 'Project Mercury' and bombings in World War II. He is the recipient of many awards, including four 'Peabody Awards.'
3. Tom Brokaw

Tom Brokaw is the only person to have hosted NBC's three major news programs: 'Meet the Press,' 'NBC Nightly News,' and 'The Today Show.' In 2014, he was honored with the 'Presidential Medal of Freedom' by Barack Obama.