With the exception of a few steps in "Wallflower", I don't recall Liza as having to dance in "The Rink" - and the best numbers they did together ("The Apple doesn't Fall" & "Don't Ah Ma Me") would be a breeze for Chita & Minnelli to do. And since Liza is so "amazed" on the shows website (she was so frisky she made me laugh!) - I don't see why a few nights would hurt. She wont call in sick, It will be a really special event, AND - It sure couldn't hurt the fact of "Liza witha Z" out on DVD either. Seems logical to me.
"It is bad enough that people are dying of AIDS, but no one should die of ignorance." -
Elizabeth Taylor