Gorgon Heap said:
That song was called "Something's Missing". You can tell it was originally intended for the Don Knotts episode, b/c in one of the scenes from that episode, we see the two characters from that number walking offstage. Why they switched it I don't know. It goes well with the Nureyev episode visually.
If it was originally meant to be part of the Don Knotts episode, maybe it was cut for time but Jim Henson thought it would be good enough to be included in another episode.
It is hard for me to pick one favorite, so I will list my five favorites from each season. Now, I haven't seen every episode, and the first season is the only one that I;ve seen every episode of, so once more season sets come out (or once I manage to see very episode, if I somehow see episodes before every episode is released) then this list might change (and I have a feeling it might for seasons 3 and 5).
Season 1 favorites: Connie Stevens, Rita Moreno, Paul Williams, Peter Ustinov, and Kaye Ballard.
Season 2 favorites: Edgar Bergan, Steve Martin, Madeline Kahn, Julie Andrews, and John Cleese.
Season 3 favorites: Raquel Welch, Alice Cooper, Gilda Radner, Danny kaye, and Leslie Uggums.
Season 4 favorites: The Stars of Star Wars, Lynda Carter, Christopher Reeve, Diaba Ross, and Liza Minnelli.
Season 5 favorites: Gene Kelley, Shirley Bassey, Mellissa Manchester, Brooke Shields, and Linda Ronstadt.