FLASHBACK: Liza & Chita Do Dinah

We need some gay-ass fabulosity up in this here joint today. Via Broadway World's Pat Cerasaro:

A fantastically fun moment from The Dinah Shore show in which Liza Minnelli performs "Nowadays" from CHICAGO alongside the songwriters who wrote it, John Kander and Fred Ebb. The mutual affection they feel for each other is palpable, but the clip reaches new heights of pathos - and hilarity - when Chita Rivera herself, Liza's co-star in CHICAGO, makes a surprise appearance. Also, watch John Kander pick up the Liza's microphone after she has dropped it and set it back on the piano stool, all whilst pounding out that delicious vamp. Fred Ebb seems to be the only one more surprised than Kander or Liza, and the clip goes even more over-the-top with the improvised ending up the octave.

So what year was this?