boob tube vs television receiver

boob tube and television receiver both are nouns.

Word	Noun	Adjective	Verb	Adverb
boob tube	Yes	No	No	No
television receiver	Yes	No	No	No

As nouns, boob tube and television receiver are synonyms defined as:

boob tube and television receiver: an electronic device that receives television signals and displays them on a screen

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

boob tube (noun)	television receiver (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