I loved this episode because it has an interesting idea. ONCE UPON A TIME is an unusual episode in THE TWILIGHT ZONE. It pays homage to silent movie genre in early 20th century. In this episode, Rod Serling also cast a famous silent movie actor. None other than the great Mr. Buster Keaton. ONCE UPON A TIME has a unique storytelling. The first-half looks like a silent movie & then changed into a "talkie" movie. Great!