I thought that at some point in the history of Television, surely there must have been some TV series that had space vampires in an episode. Vampires from outer space who sucked/drank blood.
But apparently, the first episode of 'Doctor Who' this season, "Smith And Jones", was the first to feature such a creature.
I could be wrong; I often am. If so, let me know!
There have been vampires in outer space before, but not the kind that subsisted on blood. In "The Man-Trap", an episode of 'Star Trek', the crew of the Enterprise had to contend with the last known Salt Vampire. And in an episode of 'Buck Rogers In The 25th Century', which was simply called "Space Vampire", a monstrous being known as a Vorvon was a vampire who robbed his victims of their souls.
So the Plasmavore who called herself "Florence Finnegan" may have been the first blood-sucking vampire seen outside the human race of Earth. And it could be that it was a Plasmavore who began the tradition back in Earth's pre-history. This would lead to a connection with such shows as 'The Kindred: The Embraced', 'Dracula: The Series', 'The Curse of Dracula', 'Mrs. and Mrs. Dracula', 'Young Dracula', 'Little Dracula', and even 'The Munsters'!