television newscaster vs television reporter

television newscaster and television reporter both are nouns.

Word	Noun	Adjective	Verb	Adverb
television newscaster	Yes	No	No	No
television reporter	Yes	No	No	No

As nouns, television newscaster and television reporter are synonyms defined as:

television newscaster and television reporter: someone who reports news stories via television

Other synonyms of television newscaster include TV newsman, TV reporter.

television newscaster (noun)	television reporter (noun)
someone who reports news stories via television	someone who reports news stories via television