The Flintstones Meet Rockula and Frankenstone (1979)
The Flintstones and the Rubbles win a trip on "Make a Deal or Don't" to Count Rockula's castle in Rocksylvania, where they have an unpleasant meeting with the Count and his servant, Frankenstone.
Some information and/or images in this header may be provided either partially or in full from The Movie Database.