Me, too. Those network color logos take me right back to my childhood when we first got a color set. Those prepared us for the color richness to come.
In "4½," when Rob is on top of the stuck elevator, he reads some of the graffiti on the brick wall. One message is quoted as "Fred is a --" (the closed captioning on the TV broadcast goes as far as saying "Fred is a f-"; when Laura asks him to repeat what he said, he replied, "Nothing, honey!"Foul language was obviously never uttered, but don’t rule out what some of the characters subtextual thinking might have been.