TV program vs television show

TV program and television show both are nouns.

Word	Noun	Adjective	Verb	Adverb
TV program	Yes	No	No	No
television show	Yes	No	No	No

As nouns, TV program and television show are synonyms defined as:

Other synonyms of TV program include television program, TV show.

TV program (noun)	television show (noun)
a program broadcast by television	a program broadcast by television