cable system vs television

cable system and television both are nouns.

Word	Noun	Adjective	Verb	Adverb
cable system	Yes	No	No	No
television	Yes	No	No	No

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

cable system: a television system that transmits over cables
television: a telecommunication system that transmits images of objects (stationary or moving) between distant points

Other hypernyms of cable system include television system.

cable system (noun)	television (noun)
a television system that transmits over cables	a telecommunication system that transmits images of objects (stationary or moving) between distant points
	an electronic device that receives television signals and displays them on a screen
	broadcasting visual images of stationary or moving objects