television vs broadcasting

television and broadcasting both are nouns.

Word	Noun	Adjective	Verb	Adverb
television	Yes	No	No	No
broadcasting	Yes	No	No	No

As nouns, broadcasting is a hypernym of television; that is, broadcasting is a word with a broader meaning than television:

television (noun)	broadcasting (noun)
a telecommunication system that transmits images of objects (stationary or moving) between distant points	taking part in a radio or tv program
an electronic device that receives television signals and displays them on a screen	a medium that disseminates via telecommunications
broadcasting visual images of stationary or moving objects