1) News is what is new; it’s what’s happening. It's a report of recent events or previously unknown information. News is information that is of broad interest to the intended audience, so what’s big news in one place may not be news at all in some other place. Journalists decide what news to cover based on many of the factors.
2) "No news is good news." I understand this proverb as saying "It's good that there nothing bad had happened"
3) I'd like to work as a newscaster.
4) I like all news reports.
5) I think that both BBC and CNN аre good satellite news stations.
Present Perfect Continuous is formed using have/has + been + Ving