How media in public relations has evolved or changed from print to electronic media?

as all of you know print media is newspaper,magazines etc.... the very simple example for electronic media is television,satellite etc.... nowadays number of people reading newspaper are decreased due to the arrival of electronic media eg: television. because of the visuals of what happened exactly instead reading from newspaper..... and for the uneducated people electronic media helps a lot to give them what happened as those people dont know to read....... yet it is not fully changed but will change in few days...