ABC, CBS and NBC have breakfast shows (7-9am, with ABC and NBC having extra hours afterwards) and evening national bulletins at 6.30pm.
Local affiliates are responsible for the rest of the news output, which usually includes an early morning newscast (starting as early as 4.30am in some markets) running before the breakfast show, then a lunchtime edition in some markets, an early evening edition generally split into a 5pm hour and 6pm half hour (some also run an hour at 4pm) and 35 minutes at night at 11pm.
Fox and the CW don't have any national news programmes or breakfast shows, but generally do have news from the local affiliates, in similar slots but they may also have local breakfast shows, whilst the evening bulletins will usually be at 10pm rather than 11pm.
And yes, they are ratings winners - generally the more news the better for local affiliates. It is where they make their money.
Last edited by Brekkie on 14 January 2021 11:38pm
Be nicer and more tolerant to each other. Them's the rules.