I would have liked to have seen Barnabas make Count "Grandpa" Dracula's acquaintance on DS. Maybe the two creatures of the night could have exchanged "war stories" about their varied adventures over the past few centuries?
I remember an episode of "The Munsters," where the family purchased some vacation land at an old ghost town in the West and they enjoyed it very much. It would have been fun to have seen the Munster clan travel to Maine on a vacation and stop by Collinsport for a week or so. Grandpa would have liked visiting the Eagle Hill Cemetery and perhaps, have looked up some old friends, buried there?
If David Collins happened to meet Eddie Munster, I think the two boys would prove to be kindred spirits, with both sharing a great interest in the occult. No doubt, Herman and Lily would have found Collinwood as charming as their own home at 1313 Mockingbird Lane. The secret passageways, the parallel time room and Quentin 1's Stairway-Through-Time would have intrigued and delighted the entire Munster family. I'll bet that the Collinses and the Munsters had mutual "friends" and "acquaintances" in Angelique, Nicholas Blair, Judah Zachary and the Leviathans.
Oh, if only DS had lasted another season, so we could have seen Mrs. Elizabeth Collins Stoddard and Mrs. Lily Munster, exchanging bon mots over a glass of sherry in the Collinwood drawing room.