I've always admired Laura and I still do, but I want to add that the Nina character was a bit of a break-through for broadcast TV as well, because during various episodes I recall that she acknowledged participating in a variety of sexual activities that most clergy wouldn't approve of.
It helped, of course, that the show was a comedy. There is one famous movie made during the mid-1940s at the height of movie censorship which was a comedy about finding the father of a baby; I think it was the first movie Walter Matthau was in. Nothing was explicit, but if you thought about what would be behind the dialog, the female lead had gotten **92** with a platoon of soldiers, been gang-banged, committed a variety of sexual acts which were felonies at the time, and repeated the performance the next night.