When it went on the air in September 1927, the service was the precursor to the entire network, giving a youthful William S. Paley a start in the business. Famed broadcaster Edward R. Murrow’s rooftop reports during the Nazi bombing of London during World War II kept Americans listening anxiously.

Today, CBS News Radio provides material to an estimated 700 stations across the country and is known best for its top-of-the-hour news roundups. The service will end on May 22, the network said Friday.

“Radio is woven into the fabric of CBS News and that’s always going to be part of our history,” CBS News editor-in-chief Bari Weiss said in delivering the news to the staff. “I want you to know that we did everything we could, including before I joined the company, to try and find a viable solution to sustain the radio operation.”

But with the radical changes in the media industry, “we just could not find a way to make that possible,” she said.

Not the first radio cuts at CBS

CBS News cut some of its radio programming late last year, including its “Weekend Roundup” and “World News Roundup Late Edition,” in an attempt to keep the service going.

It was unclear how many people will lose their jobs because of the radio shutdown. CBS News was cutting about 6% of its workforce, or more than 60 people, on Friday. It’s not the end of turmoil at the network, as parent company Paramount Global is likely to absorb CNN as part of its announced purchase of Warner Bros. Discovery.

Along with newspapers, radio was the dominant medium in how Americans got their news from shortly after the dawn of commercial radio in 1920 through the 1940s, with people in their living rooms listening to President Franklin Delano Roosevelt’s “Fireside Chats” during the Depression. CBS News Radio’s broadcast about Germany’s invasion of Austria in 1938, the first time Murrow was heard on the air, was an historic marker for the service.

Broadcasters like Douglas Edwards, Dallas Townsend and Christopher Glenn were familiar voices on CBS News Radio. The beginning of the television era in the 1950s began a long slide for radio, often an afterthought today with the world online and on phones. Those seeking audio often turn to podcasts before radio.

“This is another part of the landscape that has fallen off into the sea,” said Michael Harrison, publisher of Talkers, a trade publication for radio talk shows. “It’s a shame. It’s a loss for the country and for the industry.”

A major radio player for many decades

CBS News Radio was a major force for generations of Americans. “Its heyday spanned decades,” Harrison said. “It was quality on every level. It sounded good. Its coverage was as objective as possible within the realm of human nature. Its resources were extensive. It had a very high trust factor that was considered the standard of the day.”

The front page of CBS News’ website did not immediately carry news of the demise.

Weiss, founder of the Free Press website and without broadcast news experience before being hired by CBS parent Paramount’s new management, has quickly become a headline-maker and polarizing figure in journalism. She held a “60 Minutes” story critical of President Donald Trump’s deportation policy from being broadcast for a month and has critics watching to see if she’s moving the network in a Trump-friendly direction.

Addressing her staff in January, three months into her job as CBS News boss, she invoked the network’s legendary newsman Walter Cronkite as a symbol of old thinking and said that if the network continues with its current strategy, “we’re toast.” She announced the hiring of 18 new contributors and said CBS News needs to do stories that will “surprise and provoke — including inside our own newsroom.”