This afternoon, Maryland Public Television ran that special on the Andy Williams Christmas programs. Very cool 1960's video! It should show up on other PBS stations, especially if they're doing fund drives.
As for the Peacock, there's an excellent 1960's version on the DVD, "Movin' With Nancy," the 1967 Nancy Sinatra special. It also has the NBC "snake" logo at the end with the chimes.
BTW, it's a very cool show to watch on a roundie. It was the first thing was played on our CTC-f when we first got it.