Love to Love You Bradys: The Bizarre Story of The Brady Bunch Variety Hour. By Ted Nichelson, Susan Olsen & Lisa Sutton.
"Florence Henderson was more than a little surprised when she learned that a swimming pool was proposed for the Brady Bunch Variety Hour. 'Well, I think Sid and Marty Krofftt, you know, they're a little insane.'" p. 46.
This is an interesting book so far, too bad I wasn't old enough to remember this show that only lasted 9 episodes, it looks totally hilariously awful... now I've got to hunt around and find some episodes on youtube.