A truly great TV crossover has the power to surprise and enthrall viewers as characters they would never have imagined interacting with one another share the same space. Crossovers can be a great way to introduce viewers to TV shows they may not have otherwise seen by giving them a glimpse into characters’ personas while remaining within a show they already know and love. However, a bad crossover can also feel overly forced, as characters who dont meld well are unnaturally required to come together for an episode, special, TV movie, or non-canonical scene.