Can't remember much about the programme other than it was on Tele a couple of years ago and it implied that the whole vampire legend had arisen as a result of the actions of Vlad the Impaler who came from Transylvania...a place I have been to visit....and I might say would not particularly want to go again...once bitten twice shy as the expression goes...but not bitten by a vampire...just the drabness of the place and many of the people in country areas. I can understand why people visiting there might 'imagine' all manner of things as it is a bit like the villages portrayed in the Dracula films and the odd people in the local inn etc. In truth just very poor farming communities who are subsisting...and their only social life is the 'local' inn where any strangers are 'studied' when they walk in.
I recommend anyone to go there for a visit, just for the wierd experience of it all.
Incidentally, those I chatted with have not heard of vampires other than bats which they learnt about in school.