[W. Knight]

Here's NewscastStudio's summary of how the US networks covered the coronation.

www.newscaststudio.com 

To add to that, here's how Scripps News covered it. Interestingly, not a sight of Charles to be found in the open - only the Union Jack and the London skyline:
www.youtube.com 

Another minor news channel, NewsNation, didn't cover the ceremony.

[Keith]

Worth noting the BBC complaints have today acknowledged and apologised for the sound issues.
www.bbc.co.uk 

The Coronation of Their Majesties the King and Queen Camilla, sound quality, BBC…
We received complaints from viewers who were unhappy with the sound quality duri…
  Source: www.bbc.co.uk