What is the difference between on-screen, on screen and on the . . . Number 2 and 3 are both correct for what I think you are trying to say Number 2 and 3 both mean "The screen is displaying CNN news", interchangeably Number 1 is improper, as "on the screen" is used to say "Oh look, there's a hair on the screen I am going to wipe it off"
On-screen usage as an adverb and or prepositional phrase In the Cambridge Dictionary, it means: On-screen: adjective, adverb [ not gradable ] US on the screen of a television or computer: I easily adjusted the colors by using the on-screen menu As it means literally on the screen of a computer, would the sentence be correct if it was rewritten like this: I easily adjusted the colors by using the menu on-screen ? Does in its original version act as