Centuries of myth and FX's ratings both lead to the same conclusion: It's hard to kill a vampire.

The critically and popularly beloved comedy "What We Do in the Shadows" aired its fourth season on FX last summer. But before that even debuted, the cable channel had already renewed it for not one but two more seasons.

There's no word yet on when the fifth season will air. And we can't even guess based on past seasons — the first two were in the spring, Season 3 aired in the fall and Season 4 in mid-summer.

This is probably the least predictable mockumentary sitcom about vampire roommates ever on television.

The FX execs clearly had a good time making the two-season renewal announcement. "There's a lot of life left in our favorite vampires from Staten Island, and FX couldn't be more thrilled to commit to two additional seasons of this phenomenal series," Nick Grad, the channel's president of original programming, said.

The show is riding a critical high going into its next season. In the fall, it finally won its first Emmy (for its costume work), after being nominated for piles of them over the years.

Have a question? Email us at questions@tvtabloid.com. Please include your name and town. Personal replies will not be provided.