When you attend an action movie, you see previews of other action movies. At the end of a television show, you often see highlights for the next episode of the same show. The best time to tease the next episode of a feature is immediately after performing the feature. Promoting similar content is logical. Nearly all of the existing audience likes what they just heard. This is the best time to tell them when to get more.
Examples: Tease The Next Episode Of A Feature