We are so accustomed to acting in an electronic medium that today we perhaps do not fully appreciate the skill that goes into acting in which only one element of protrayal. Silent films required motion to get the idea across - and thus in the earliest day of talkies the actors seemed to be over-acting because they had not yet shed the motions necessary to in the silent films. We laugh at silent films, but seldom appreciate the skill that was needed to act in that manner. In like manner on old radio shows, the motions and facial expressions could not be seen, so all that had to be conveyed by voice and sound effects. It took different skills, and in our very narrow modern view of things, we depreciate those skills.