videotape vs picture show

videotape and picture show both are nouns.

Word	Noun	Adjective	Verb	Adverb
videotape	Yes	No	Yes	No
picture show	Yes	No	No	No

videotape (noun)	picture show (noun)
a relatively wide magnetic tape for use in recording visual images and associated sound	a form of entertainment that enacts a story by sound and a sequence of images giving the illusion of continuous movement
a video recording made on magnetic tape

videotape (verb)	picture show (verb)
record on videotape