Vicky was driving the car in the episode.

Back to the Future was like this also with Marty remembering the old timeline and the new one.

That scene in the Phoenix morgue looked like it was filmed in a real morgue.  What was used as the establishing shot for Phoenix? Was it a slide or a film?  I didn't get a good look at this when I saw it.

In 1795, Jeremiah told Vicky he and Barnabas were the same age.  This is in the episode where Vicky was surprised that Jeremiah was concerned for Barnabas when he was choking (due to Angelique and the voodoo doll)  as she always thought they never got along.

Trask and Minerva were married for many years.   1897 was the year Dracula was published, too bad they didn't reference it on DS at the time.

I liked 1897 but it got to be tedious toward the end, I didn't like the plot involving the I Ching, the writers were just stretching the story at that point.  I would have preferred that Rachael leave town for a while and then return after realizing she was Josette's reincarnation instead of KLS playing another character who no one notices looks like Rachael.

As for Roger Davis, well, I would have cast three different actors as Ned Stuart, Dirk Wilkins, and Charles Delaware Tate. 

Dan Curtis said in an interview that he the one supernatural character he wouldn't use was a mummy, because all a mummy could do is drag it's leg.  thats probably what changed his mind and he went with Leviathan.

Penny Dreadful- I think the magazine article may be found in The Collinwood Collection 1 or 2 by Bob Issel.
I was looking at his third issue of this collection and found some interesting items...Roger Davis was being considered to return to DS in March 1971 and Jonathan frid was good friends with Jack Lord and spent vacation time with Lord and his wife at JL's Hawaiian estate.

Dr. Guthrie was a forerunner to Professor Stokes in the 1967 Laura Collins story.  Too bad they killed him off, he would have been great use during the first Barnabas story.

Though, they may never have brought TD back for 1795.

Stokes was an improtant character in DS, if he went back in time instead of Barnabas to 1840 and 1897, he would have known to keep a distance and not interfere with anything by just watching things as they happened and then deduce what to do in the present time.