It really was a wonderful performance. I agree that the television broadcast didn't really show one of the major strengths of the production, which was the use of the incredibly deep stage and the real epic sweep of the design and staging. The almost cinematic transitions between some of the scenes were really lost in the PBS showing.
The design of the show was really pretty incredible.
At the stage door, I'm not sure the ensemble folks were hurrying to get to the party; I think that they were just unused to being asked to sign and were assuming no one would ask them. For whatever reason, even in the early part of the run, South Pacific was never a big stage door show, so I'm guessing they (unjustly) were used to no one asking them. As far as I could tell, they were happy to sign when someone asked them. (The less than ideal setup at the stage door didn't help matters.)
"What was the name of that cheese that I like?"
"you can't run away forever...but there's nothing wrong with getting a good head start"
"well I hope and I pray, that maybe someday, you'll walk in the room with my heart"