TV show vs television program

TV show and television program both are nouns.

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

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

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

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