Trivia: Two of the "Sound of Music" kids had guest roles: Nicholas Hammond, who played the oldest son Friedrich, was in "The Subject Was Noses", and Kym Karath, who played the youngest child Gretl, was in "Cyrano de Brady".
Trivia: Susan Olson, who played Cindy, loved the TV show 'Family Affair' and begged her mother to give her a 'Buffy' hairdo. The producers loved her hair that way and so for several seasons, she wore it that way (and grew to hate it).
Trivia: The reason that there is no glass in the sliding back door, and the reason for a similar mistake in the popular sixties show Bewitched is that real glass is generally not used in windows in movies and TV shows, because the glare drives the camera crew nuts.
Trivia: Florance Henderson's hair style on the show was done on purpose. Few knew that since the 1950's she lost all hearing in both ears. The left hearing came back, but she had a hearing aid over her right ear.