Final answer:
A crossover episode is when characters from two different TV shows or movies come together in a single episode, allowing for unique and exciting storylines.
Step-by-step explanation:
A crossover episode is when characters from two different TV shows or movies come together in a single episode. It's a fun way to explore different universes colliding and see how the characters interact with each other.
For example, a crossover episode could involve characters from the TV show 'Friends' and the movie 'The Avengers.' In this episode, the 'Friends' characters could somehow get involved in a superhero mission with the Avengers, leading to humorous and exciting situations.
Another example of a crossover episode could be between the TV shows 'Stranger Things' and 'The Walking Dead.' In this episode, the characters from 'Stranger Things' could find themselves in a world overrun by zombies, facing a whole new set of challenges.
The combination of supernatural elements from 'Stranger Things' with the zombie apocalypse from 'The Walking Dead' would create a unique and thrilling storyline.