I noticed one other change in tonight's Tonight Show as it aired. After her song, k.d. lang went over to the guest chair and said a line or two about how wonderful it always was to appear with Johnny. That was cut, presumably to make room for the clip they edited in of Carson and Rickles.
As I mentioned, I spent some time this morning chatting with Paul Harris on his fine radio show out of St. Louis. We talked about Carson, of course, and Paul has now posted an MP3 file of that conversation over on his website. Prowl around a bit and you'll find conversations with a lot of folks, many more interesting than me.