The Academy Awards will move to Alphabet Inc. ’s YouTube service in 2029, ending more than a half century on the ABC network and more than 70 years on broadcast TV.

The Academy Awards will begin airing exclusively on YouTube in 2029, the latest big change in Hollywood.

The Oscars, including red carpet coverage, behind-the-scenes content and Governors Ball, will be available live and for free to viewers around the world, as well as to YouTube TV subscribers in the Un...