It’s been 121 years since the world’s first movie was created, and within that time span every plot genre has since been overplayed and overused—especially on TV.

Somehow, however, shows occasionally slip through the superficial cracks and become brilliant. Taking one stale idea and revitalizing it into new, interesting angles is what places “Dexter” and “Buffy the Vampire Slayer” on the top tier of quality television.

In eight seasons of crime-fighting, detective work and serial killing, “Dexter” displays the true complexities of police work in the abnormal mind of a traumatized mass-murderer.

Dexter doesn’t behave how one would expect a killer to act. His prodigious blood analyst work at the Miami police department gets him close to his victims, a group that consists strictly of murderers. And despite his psychopathic tendencies of emotionless narcissism, Dexter manages to live a life rich with love and relationships.

By season two you’ll find yourself strangely attached to this supposed soulless serial killer, your morals conflicted with unanswered questions: Is he really evil if he’s saving lives? How much of his social life is he actually faking? And what will it take for him to get caught?

Despite a rocky first season and its campy tone, “Buffy the Vampire Slayer” has continued to maintain an enormous fan following even after its finale 14 years ago.

On the outside, “Buffy the Vampire Slayer” seems like a relatively standard show– a crew of outcast teenagers band together to defeat vampires and other gnarly evils. Witty characters and elaborate plot-lines, however, are proof that the show shines way above average.

Sensitive topics such as sexuality, familial death and depression give the show intrigue. A comedic script and unique stars provide it with character. Add a close-knit cast to the list and you’ve got yourself an incredible and intense vampire flick.

While these shows may have stolen overused themes, their otherwise unique plot execution proves that even the worst-seeming shows can become excellent with dedication and creative craftsmanship.