The first sentence:
When a series does an Art Shift to an older presentation style for Flashback Effects to a time when it used this style.
seems to me to imply the series itself actually used this style, but many examples don't follow this, and not many show last a very long time, so I'm going with the latter to add two examples of television shows simulating silent films.
The first sentence: When a series does an Art Shift to an older presentation style for Flashback Effects to a time when it used this style. seems to me to imply the series itself actually used this style, but many examples don't follow this, and not many show last a very long time, so I'm going with the latter to add two examples of television shows simulating silent films.