I am in Chicago and ABC seems to do this all the time. Breaking News - the mayor rode his bike in the park. Breaking news - So-and-So has arrived in Chicago.
This week a prominent congressman from the Chicago area and his wife were sentenced to prison for crimes. They prempted GH twice for this, and both times there was nothing other than a rehash of what had happened, and more looking at some beat reporter in front of the courthouse. Break in when something is actually news worthy or new is happening. By them breaking in all the time, it actually diminishes the impact they have. Some of it can wait until a commercial break - but we can't interrupt those paid advertisers can we? ;)