Jayne Mansfield taped a guest appearance just days before her death. After she died, the interview was quickly substituted for a previously scheduled interview and aired on 30 June 1967.
TV columns reported that Agnes Moorehead's July 1967 appearance never aired because she had had an angry exchange of words with hostess Joanna Barnes.
This is the show that introduced America to Rona Barrett. She did a short gossip segment until Joanna Barnes left the show to do a movie, at which point "Miss Rona" took over as hostess. It didn't matter; the last telecast aired September 29, 1967, and reruns aired until December, mostly due to a technicians' strike against ABC which precluded production of new shows.