The notorious "in/and" debate

Was the TV series from 1998 onwards called "Sex AND the City" or "Sex IN the City"?

Look it up today, and you'll see "Sex and the City" everywhere, but those experiencing the Mass Memory Discrepancy Effect remember it as "Sex in the City".

There are quite a few references to "Sex in the City" too, including the awards ceremony shown in this video.

This could be another simple slurring of the connecting term however, as in the "Interview with/a Vampire" MMDE. If you say either "Sex in the City" or "Sex and the City" often enough (or quickly) it just becomes "Sex n the City", and this is what could then become lodged in the mind as its actual name. 

Residue

With Mandela Effects, there is often talk of "residue". This refers to evidence of whatever ME is being discussed being available for both ways, and it's usually the old way which has the least amount. In fact most ME's don't have any reside at all - it's only in people's memories.

This Mandela Effect is one of the better known ones, and an internet search for "Sex in the City"  throws up many references. However, that's not really an indication of anything untoward, because it must be borne in mind that these searches often report what others have searched for in the past, so many of these results wouldn't appear if the history of people doing "wrong" searches hadn't happened.

To the layman, the idea of the show is summed up better with "in" than "and", so without actually being interested enough to knowingly store the title exactly, probably just "assemble" the title from the key points, i.e. it's about sex, it concerns a city, the title is "sex {something} the city" so the most logical word of the two is "in".