"Return to 1969" announcement

Back when DS was originally on, I seem to recall an announcment (by
Jonathan Frid) over the closing credits of one of the episodes near
the end of th 1897 storyline, saying that on such and such a day, DS
would reutrn to the year 1969.  Can anybody tell me (a) whether that
was actuyally part of the episode as recorded, and thus as appearing
on the DVD, and (b) if so, which episode it is.  (I'm watching the
DFDs and getting near the end of the 1897 storyline now, and I wanted
to be sure not to skip over it.)