goggle box vs television set

goggle box and television set both are nouns.

Word	Noun	Adjective	Verb	Adverb
goggle box	Yes	No	No	No
television set	Yes	No	No	No

As nouns, goggle box and television set are synonyms defined as:

goggle box and television set: an electronic device that receives television signals and displays them on a screen

Other synonyms of goggle box include boob tube, idiot box, television, television receiver, telly, tv, tv set.

goggle box (noun)	television set (noun)
an electronic device that receives television signals and displays them on a screen	an electronic device that receives television signals and displays them on a screen