Filming does not always need to be scripted, though scripts and teleprompters are highly recommended for presenters who lack confidence or public speaking skills, and they generally expedite the filming process. While scripts can sometimes sound unnatural if too 'written,' this can be mitigated by using contractions and emphasizing key words. For experts well-versed in their topic, an unscripted interview format, like a 'coffee-shop' style conversation, can offer a more natural flow and save significant preparation time, with only the questions being pre-scripted.