This and other uploads of the program list the airdate as 1982, which matches the info in the show's credits, but for some reason IMDB says it's from 1986. The special feels like mid 1970s to early 1980s; the documentary feel with the type of recreation footage puts you in the mind of watching a film in school during that era--albeit a really cool one!
Narrated and hosted by Price, the hour looks at the historic background of one of the models for Bram Stoker's Dracula, Vlad the Impaler. It also looks at portrayals of vampires in culture through the years, including various film clips. Of note is that there are no clips from Dracula (1931) nor any other Universal movies. Some of the footage appears to be repurposed from a fictional film project.
Price does exactly what you want him to do, and the special strikes just the right tone in balancing his playful presentation with archival material and recreations. Yes, I am posting this "a day late," in a sense, but shouldn't every day be a good time to see a Vincent Price special?