David Muir appeared on the July 3 episode of LIVE! with Kelly & Mark to promote his 24-hour broadcast for a special Fourth of ...

Viewers without cable or an over-the-air antenna can watch “Disney Celebrates America” live and on demand using free trials ...

Muir traveled to the Grand Canyon and Redwood National and State Parks.

The 'ABC World News Tonight' anchor tackled the daring feat as part of the 'Disney Celebrates America' event.

David Muir - Discover all of the latest news and updates, including exclusive interviews from the UK, US and rest of the ...

On July 4, 1776, the Declaration of Independence was signed in Philadelphia. ABC News' David Muir was in the room where it ...

"World News Tonight" anchor David Muir climbed up to the torch of the Statue of Liberty as part of ABC News' coverage of ...

In this exclusive clip from ABC's coverage of America's 250th anniversary, network anchor David Muir ascends to the top of ...

ABC's David Muir suffered an ugly start to his broadcast on Tuesday due to a technical hitch that struck barely two minutes in. The issue occurred just as Muir, 52, began to segue into the day's news ...

David Muir, Diane Sawyer and Deborah Roberts talk to USA TODAY about ABC's 24-hour live broadcast for America 250 and the ...