television reporter vs television newscaster

television reporter and television newscaster both are nouns.

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

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

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

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

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