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Muir subsequently secured internships by writing letters to local newsrooms, which eventually launched his professional broadcasting career.
"I began interning, carrying all the equipment – and back then the equipment was huge and heavy – and I'd jump into the back of the cruiser, and I was honestly the happiest kid," recalled Muir.
Muir added that his enthusiasm for newsroom fieldwork outpaced standard school vacation interests.
"Most kids were looking forward to summer vacation, and I couldn't wait to get into the back seat of that cruiser all over again," said Muir.
Sawyer and Roberts Share Their Experiences
During the USA Today interview, longtime anchor Diane Sawyer interrupted to joke about Muir's physical stamina during his 300-foot climb.
"Have you met David Muir?" quipped Sawyer.
Sawyer laughed alongside her colleagues while questioning whether Muir required any physical rest during the assignment. "Do you think he needed a break?"
asked Sawyer.
Sawyer traveled to the Appalachian Mountains for her segment, describing the 13-state range as a biodiversity highway that helped shape the early American identity.
"If we make it across these mountains, then nothing stops us all the way to the Pacific," said the settlers.
Sawyer noted that certain broadcast moments convey deeper meanings to viewers without requiring verbal commentary.
"I think one of the great joys [of this job] is when you can bring people something that doesn't need words," added Sawyer.
Co-anchor Deborah Roberts covered Yellowstone National Park for the special, calling the assignment a magical but challenging experience that required stopping for wildlife.