Fetching details from the dictionary...

announcer; presenter; broadcaster; reporter
in-house television talent who does on-location fluff pieces for variety shows
テレビのアナウンサーになりたい。
I want to become a TV announcer.
アナウンサーがニュースを読んでいる。
An announcer is reading the news.
有名なアナウンサーに会えた。
I got to meet a famous announcer.