I grew up--OK, went through elementary school--in Moore, Oklahoma from
around 1965 to 1973, and spent many a late night watching the good
Count. I especially recall the time the Green Slime Girls came to
visit; from the IMDB entry for the movie that would have been in 1968.

I'm especially glad to have found that Mr. Ferguson is still with us
and still portraying the Count from time to time.

"Some enchanted evening, you will meet a strangler..."