Dark Shadows is a Dan Curtis Production Announcement

[Joeytrom]

I think you may be right about that, I sort of remember something like that happening.  The DCP logo was also changed in a few episodes around that time.

[The Doctor and K9]

This doesn't answer the question about how I could have heard that announcement over in an episode from late 69 or 70. I wonder if they continued it, but did not record it on the master in favor of having it go out live on the broadcast date. I'm certain I heard it at a festival, but it came from what looked like a BW kinescope instead of one of the color masters. I could be wrong, which is why I'm checking to see if anyone has similar memories. All my old audio tapes are not of any help. They don't have the end credit music.

[The Doctor and K9]

After what Joe said, I'm beginning to think I heard it wrong at the Fest. Memory is a tricky thing.

[Cousin_Barnabas]

Which was exactly my point about Hall and Moltke filling in.  The ABC announcer no longer did it live, so if you heard his voice, I doubt it was there originally.  Since he had stopped in 1967, I can't imagine the announcement being picked up later on especially just for one episode.  Maybe they added it just for fun at the fest, but idk. 

[The Doctor and K9]

As I stated in an earlier post, I was pretty certain I heard that announcement over a Leviathan episde (you could see the altar). I'm pretty sure the clip was in BW.

[Mysterious Benefactor]

That's very interesting. And I just checked my VHS tape from the '97 Sci-Fi broadcast of Ep #1021, and it's on there too, which isn't always the case. (Some of the music cues had been changed for broadcast on Sci-Fi.  )

[MagnusTrask]

The sound during the closing credits of #1021 was strange too, distorted or noisy or something.   I figure that someone pressed a wrong button or something, though it seems odd that a bit of tape would have stayed poised and ready to be played that they'd abandoned years earlier.

No one would have gone through episodes after broadcast and eliminated that announcement... I'm not even sure it would have been possible.   Anyway, no one would have had any reason to bother.    I think I'd remember if during my childhood, that announcement had always been there.   I'm sure it wasn't.