SG #77's Sci-Fi Channel update:
I checked my VHS tapes for the period the '91 DS ran this time on Sci-Fi and lo and behold, unlike the time before, I actually did find a promo for it that ran during the original DS' showing. It ran on July 23rd during the first ep:
1897's first ep (Ep #701) ran as Sci-Fi's first ep on August 19th.
And the corrected SG ad did indeed run on July 8th - it popped up during that day's second ep:
Interestingly, the Vampires & Ghosts promo was shown again during the first ep on July 24th. It's too bad they didn't wait until July 25th because the ad's clip of Mrs. Johnson seeing Quentin's Ghost in the cottage would have coincided with Ep #669, the ep the clip comes from, being shown that day as the first ep on Sci-Fi.
And while we're on the subject of these sorts of ads, I was quite surprised to see this one come up during the second ep on August 7th:
Back in February of 1995 we were told in SG that the supply of those cards was "depleted."* Though, of course, after that they miraculously showed up for sale by the Fest in their November of 1995 mailing. And now in August of 1996 apparently even more miraculously they're STILL for sale through the Fest. Somewhere along the way the definition of "depleted" must have been changed in regard to the cards. The meaning of "limited time only" may have also been changed considering that ad first ran on Sci-Fi back in 1994 when the cards first came out...
*
(Though keep in mind that SG reports what it's told - if something turns out to be otherwise, well, that's the source's error...)