television program vs TV show

television program and TV show both are nouns.

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

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

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

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