Yes, your comment about the ABC censors probably never allowing Dan Curtis to have Lake Titicaca mentioned on a DS episode is well taken.
I recall that KLS mentioned in her first DS book that the ABC censors discouraged DC and the DS writers from referring to Bangor, Maine, a city’s name which might lead to “rude interpretations.”
Personally, I would have loved to have heard the late, great Dennis Patrick (as either Jason McGuire or Paul Stoddard) recite one of his wonderfully wicked limericks on an episode of DS. For all of the younger and new fans of DS, who never heard one of Mr. Patrick’s lascivious limericks, here goes:
There was a young lad named Willie,
Who went after a goat that was pretty.
Said the goat, don’t be crass, stay away from my @ss,
My name isn’t Nan, it’s Billy!