The television series Dexter premiered on Showtime, introducing the character Dexter Morgan and beginning the story of the forensic blood spatter analyst who leads a secret life as a vigilante serial killer.
The first season of Dexter concluded, establishing the show's popularity and critical acclaim, setting the stage for subsequent seasons.
The Season 4 finale of Dexter, featuring the Trinity Killer storyline, airs and is widely regarded as one of the series' best episodes, increasing the show's popularity.
The original Dexter television series concluded after eight seasons, wrapping up the story of Dexter Morgan on Showtime.
The revival miniseries Dexter: New Blood premiered, continuing the story of Dexter Morgan almost a decade after the original series ended.